Diagram shows the lengthwise section of a current carrying solenoid.
Choose the incorrect statement.
Choose the correct option.
The magnetic field inside a long straight solenoid carrying current
Assertion : The magnetic field is stronger at a point
Reason : The magnetic field B produced by a straight current
A ship is to reach a place 8Â° South of west.
The diagram shows a coil of wire wound on a soft iron core forming an electromagnet.
A coil P is connected to a torch bulb and placed parallel to another coil Q as shown in the figure below
Assertion : In an AC generator slip-rings type of commutator is used.
Reason : Slip-rings are full rings with which the ends of co..
Identify the poles of a magnet in the figure.
Describe the whole working of the following circuit.
Assertion : To avoid risk of electrical shock,
Reason : Earthing saves us from electrical shocks.
(i) State Flemings left hand rule.
(ii) Write the principle of working of an electric motor.
(iii) Explain the function of the fol..
A rectangular loop carrying a current i is situated near long straight wire such that the wire is parallel to one of the sides of ..
Identify the region, where the magnetic fields arround a current carrying solenoid is uniform
Name the rule which gives the direction of induced current in a conductor.
Assertion : The magnetic field produced by
Reason : The magnetic field inside the solenoid is uniform
Name the type of current :
(a) used in household supply
(b) given by a cell
A constant current flows in a horizontal wire in the plane of the paper from east to west as shown in the figure.
State the principle of an electric generator.
A circular metallic loop is kept above the wire AB as shown below.
The flow of current in a circular wire creates a magnetic field at its centre.
The magnetic field in a given region is uniform. Draw a diagram to represent it.
Assertion : Electric appliances with metallic body have three connections
Reason : Three pin connections reduce heating of connect..
A horizontal power line carries a current from East to West direction.
(i) The figure shows a domestic electric circuit.
(ii) Give one difference between the wires used in
(iii) List two advantages of ..
AB is a current carrying conductor in the plane of the paper as shown in the figure.
A circular loop placed in a plane perpendicular to the plane of paper carries a current when the key is ON.
A magnetic compass needle is placed in the plane paper near point A as shown in figure.
Explain the meanings of words "electromagnetic" and "induction" in the term electromagnetic induction.
A positively charged particle (Î±-particles) projected towards West is deflected towards North by a magnetic field
The magnetic field at a distance r from a long wire carrying current I is 0.4 Tesla
State Fleming left hand rule.
A constant current flows in a horizontal wire in the plane of the paper from East to West as shown in figure. At what point, the d..
Name two safety measures commonly used in electric circuit and appliances.
For a current in a long straight solenoid N and S-poles are created at two ends.
(i) Draw the magnetic field lines through
(ii) State whether an Î±-particle will experience any force in a magnetic field
Choose the correct option.
A rectangular coil of copper wire is rotated in a magnetic field.
If the key in the arrangement as shown below is taken out
Which of the following correctly describes the magnetic field
What is meant by magnetic field?
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