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Larisa 1 Year Ago

A Copper Disc Of Radius 0.1 M Is Rotated About Its Centre With 20 Rev/s In An Uniform Magnetic Field Of 0.1 T With Its Plane Perpendicular To The Field. The Emf Induced Across The Radius Of The Disc

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Modified 1 Year Ago Larisa
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Caroline 1 Year Ago

The Figure Shows Three Circuits With Identical Batteries, Inductors And Resistances. Rank The Circuits According To The Currents Through The Battery Just After The Switch Is Closed, Greatest First

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Modified 1 Year Ago Caroline
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Joshua 1 Year Ago

A Step-down Transformer, Transforms A Supply Line Voltage Of 2200 V Into 220 V. The Primary Coil Has 5000 Turns. The Efficiency And Power Transmitted By The Transformer Are 90per And 8 KW

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Modified 1 Year Ago Joshua
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Chloe 1 Year Ago

In An AC Generator, A Coil With N Turns, All Of The Same Area A And Total Resistance R, Rotates With Frequency W In A Magnetic Field B. The Maximum Value Of Emf Generated In The Coil Is

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Modified 1 Year Ago Chloe
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Olivia 1 Year Ago

A Step-down Transformer Is Used On A 1000 V Line To Deliver 20 A At 120 V At The Secondary Coil. If The Efficiency Of The Transformer Is 80 Per, The Current Drawn From The Line Is

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Modified 1 Year Ago Olivia
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Tim 1 Year Ago

A Transformer Has An Efficiency Of 80 Per. It Is Connected To A Power Input Of 5 KW At 200 V. If The Secondary Voltage Is 250 V, The Primary And Secondary Currents Are Respectively

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Modified 1 Year Ago Tim
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Ishranth 1 Year Ago

When The Current Changes From + 2 A To -2 A In 0.05 S, An Emf Of 8V Is Induced In A Coil. The Coefficient Of Self Induction Of The Coil Is

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Modified 1 Year Ago Ishranth
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Gabrielle 1 Year Ago

What Should Be The Value Of Self Inductance Of An Inductor That Should Be Connected To 220 V, 50 Hz Supply, So That A Maximum Current Of 0.9 A Flows Through It ?

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Modified 1 Year Ago Gabrielle
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Yvonne 1 Year Ago

Magnetic Flux Of 10 U Wb Is Linked With A Coil, When A Current Of 2mA Flows Through It. What Is The Self Inductance Of The Coil ?

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Modified 1 Year Ago Yvonne
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Leonard 1 Year Ago

A Solenoid Of Inductance 2 H Carries A Current 1 A. What Is The Magnetic Energy Stored In A Solenoid ?

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Modified 1 Year Ago Leonard
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James 1 Year Ago

A Solenoid Of Inductance 2 H Carries A Current 1 A. What Is The Magnetic Energy Stored In A Solenoid ?

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Modified 1 Year Ago James
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Dan 1 Year Ago

Induced Emf In The Coil Depends Upon

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Modified 1 Year Ago Dan
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Yvonne 1 Year Ago

In 0.1s, The Current In A Coil Increases From 1 A To 1.5 A. If Inductance Of Coil Is 60 MH, Then Induced Current In External Resistance Of 3 Will Be

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Modified 1 Year Ago Yvonne
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Vanessa 1 Year Ago

Energy Required To Establish A Current Of 4 A In A Coil Of Self Inductance L= 200 MH Is

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Modified 1 Year Ago Vanessa
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Lauren 1 Year Ago

Quantity That Remains Unchanged In A Transformer Is

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Modified 1 Year Ago Lauren
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Samantha 1 Year Ago

The Turn Ratio Of A Transformer Is 1 : 2. An Electrolytic DC Cell Of Emf 2 V Is Connected To Its Primary. The Output Voltage Across Transformer Is

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Modified 1 Year Ago Samantha
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Sonia 1 Year Ago

Which Types Of Losses Do Not Occur In The Transformer ?

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Modified 1 Year Ago Sonia
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Jasmine 1 Year Ago

A Transformer Is Used To Light A 100 W And 110 V Lamp From A 220 V Mains. If The Main Current Is 0.5 A, The Efficiency Of Transformer Is Approximately

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Modified 1 Year Ago Jasmine
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Tracey 1 Year Ago

A Transformer Rated At 10 KW Is Used To Connect A 5 KV Transmission Line To A 240 V Circuit. The Ratio Of Turns In The Windings Of The Transformer Is

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Modified 1 Year Ago Tracey
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Warren 1 Year Ago

The Number Of Turns In Primary And Secondary Coils Of A Transformer Is 50 And 200, Respectively. If The Current In The Primary Coil Is 4 A, Then The Current In The Secondary Coil Is

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Modified 1 Year Ago Warren
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Felicity 1 Year Ago

A Six Pole Generator With Fixed Field Excitation Developes An Emf Of 100 V, When Operating At 1500 Rpm. At What Speed Must It Rotate To Develop 120 V ?

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Modified 1 Year Ago Felicity
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Sally 1 Year Ago

Turn Ratio Is 1.25. The Step-up Transformer Operates At 230 V And Current Through Secondary Is 2 A. Then, Current In Primary Is

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Modified 1 Year Ago Sally
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Emma 1 Year Ago

Induction Furnace Is Based On The Heating Effect Of

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Modified 1 Year Ago Emma
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Anthony 1 Year Ago

For A Large Industrial City With Much Load Variations, The DC Generator Should Be

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Modified 1 Year Ago Anthony
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Claire 1 Year Ago

The Core Of A Transformer Is Laminated To Reduce

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Modified 1 Year Ago Claire
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Nicola 1 Year Ago

A Transformer Works On The Principle Of

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Modified 1 Year Ago Nicola
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Caroline 1 Year Ago

A Step-down Transformer Has 50 Turns On Secondary And 1000 Turns On Primary Winding. If A Transformer Is Connected To 220 V And 1 A AC Source, What Is Output Current Of The Transformer ?

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Modified 1 Year Ago Caroline
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Audrey 1 Year Ago

The Materials Suitable For Making Electromagnets Should Have

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Modified 1 Year Ago Audrey
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Oliver 1 Year Ago

Magnetic Susceptibility Of A Diamagnetic Substance

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Modified 1 Year Ago Oliver
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Ian 1 Year Ago

A Paramagnetic Liquid Is Taken In A U-tube And Arranged So That, One Of Its Limbs Is Kept Between Pole Pieces Of The Magnet. The Liquid Level In The Limb

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Modified 1 Year Ago Ian

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80 of 46136 Questions

Recent Questions

A Copper Disc Of Radius 0.1 M Is Rotated About Its Centre With 20 Rev/s In An Uniform Magnetic Field Of 0.1 T With Its Plane Perpendicular To The Field. The Emf Induced Across The Radius Of The Disc

The Figure Shows Three Circuits With Identical Batteries, Inductors And Resistances. Rank The Circuits According To The Currents Through The Battery Just After The Switch Is Closed, Greatest First

A Step-down Transformer, Transforms A Supply Line Voltage Of 2200 V Into 220 V. The Primary Coil Has 5000 Turns. The Efficiency And Power Transmitted By The Transformer Are 90per And 8 KW

In An AC Generator, A Coil With N Turns, All Of The Same Area A And Total Resistance R, Rotates With Frequency W In A Magnetic Field B. The Maximum Value Of Emf Generated In The Coil Is

A Step-down Transformer Is Used On A 1000 V Line To Deliver 20 A At 120 V At The Secondary Coil. If The Efficiency Of The Transformer Is 80 Per, The Current Drawn From The Line Is

A Transformer Has An Efficiency Of 80 Per. It Is Connected To A Power Input Of 5 KW At 200 V. If The Secondary Voltage Is 250 V, The Primary And Secondary Currents Are Respectively

When The Current Changes From + 2 A To -2 A In 0.05 S, An Emf Of 8V Is Induced In A Coil. The Coefficient Of Self Induction Of The Coil Is

What Should Be The Value Of Self Inductance Of An Inductor That Should Be Connected To 220 V, 50 Hz Supply, So That A Maximum Current Of 0.9 A Flows Through It ?

Magnetic Flux Of 10 U Wb Is Linked With A Coil, When A Current Of 2mA Flows Through It. What Is The Self Inductance Of The Coil ?

A Solenoid Of Inductance 2 H Carries A Current 1 A. What Is The Magnetic Energy Stored In A Solenoid ?

A Solenoid Of Inductance 2 H Carries A Current 1 A. What Is The Magnetic Energy Stored In A Solenoid ?

Induced Emf In The Coil Depends Upon

In 0.1s, The Current In A Coil Increases From 1 A To 1.5 A. If Inductance Of Coil Is 60 MH, Then Induced Current In External Resistance Of 3 Will Be

Energy Required To Establish A Current Of 4 A In A Coil Of Self Inductance L= 200 MH Is

Quantity That Remains Unchanged In A Transformer Is

The Turn Ratio Of A Transformer Is 1 : 2. An Electrolytic DC Cell Of Emf 2 V Is Connected To Its Primary. The Output Voltage Across Transformer Is

Which Types Of Losses Do Not Occur In The Transformer ?

A Transformer Is Used To Light A 100 W And 110 V Lamp From A 220 V Mains. If The Main Current Is 0.5 A, The Efficiency Of Transformer Is Approximately

A Transformer Rated At 10 KW Is Used To Connect A 5 KV Transmission Line To A 240 V Circuit. The Ratio Of Turns In The Windings Of The Transformer Is

The Number Of Turns In Primary And Secondary Coils Of A Transformer Is 50 And 200, Respectively. If The Current In The Primary Coil Is 4 A, Then The Current In The Secondary Coil Is

A Six Pole Generator With Fixed Field Excitation Developes An Emf Of 100 V, When Operating At 1500 Rpm. At What Speed Must It Rotate To Develop 120 V ?

Turn Ratio Is 1.25. The Step-up Transformer Operates At 230 V And Current Through Secondary Is 2 A. Then, Current In Primary Is

Induction Furnace Is Based On The Heating Effect Of

For A Large Industrial City With Much Load Variations, The DC Generator Should Be

The Core Of A Transformer Is Laminated To Reduce

A Transformer Works On The Principle Of

A Step-down Transformer Has 50 Turns On Secondary And 1000 Turns On Primary Winding. If A Transformer Is Connected To 220 V And 1 A AC Source, What Is Output Current Of The Transformer ?

The Materials Suitable For Making Electromagnets Should Have

Magnetic Susceptibility Of A Diamagnetic Substance

A Paramagnetic Liquid Is Taken In A U-tube And Arranged So That, One Of Its Limbs Is Kept Between Pole Pieces Of The Magnet. The Liquid Level In The Limb

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