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Popular Questions
- The maximum value of AC voltage in a circuit is 707 V. Its rms value is
- An inductance 1 H is connected in series with an AC source of 220 V and 50 Hz. The inductive reactance (in ohm) is
- The peak value of an alternating current is 5 A and its frequency is 60 Hz. Find its rms value and time taken to reach the peak va..
- A telephone wire of length 200 km has a capacitance of 0.014 uF per km. If it carries an AC frequency 5 kHz, what should be the va..
- A pure inductive coil of 30 mH is connected to an AC source of 220 V, 50 Hz. The rms current in the coil is
- In an a.c. circuit the instantaneous e.m.f. and current
- The peak value of an alternating current is 5 A and its frequency is 60 Hz. Find its rms value and time taken to reach the peak va..
- The magnetic field in a travelling electromagnetic wave has a peak value of 20 nT. The peak value of electric field strength is
- Same current is flowing in two alternating circuits. The first circuit contains only inductance and the other contains only a capa..
- Average power in the L - C–R circuit depends upon the
- An ideal choke draws a current of 8 A when connected to an AC supply of 100 V, 50 Hz. A pure resistor draws a current of 10 A when..
- In an L-C-R series AC circuit, the voltage across each of the components L, C and R is 50 V. The voltage across the L-C combinatio..
- In a circuit, the current lags behind the voltage by a phase difference of pie/ 2, the circuit will contains which of the followin..
- What is the average value of the AC voltage over one complete cycle?
- In Colpitt oscillator the feedback network consists of
- An arc lamp requires a direct current of 10 A
- Alternative emf of E = 220 root 2 sin 100 t is applied on a capacitor 1 u then current is
- In L-C-R circuit if resistance increases, quality factor
- Alternating current cannot be measured by DC ammeter because
- If an alternating voltage is represented as E= 141 sin (628 t), then the rms value of the voltage and the frequency are respective..
- For an RLC circuit driven with voltage of amptitude
- A choke is preferred to a resistance for limiting current in AC circuit, because
- In the LCR circuit as shown below both switches
- An LCR circuit is equivalent to a demand pendulum
- A fully charged capacitor C with initial charge
- In a series LCR circuit R=200 ohm and the voltage
- The current voltage relation of diode is given by I = (e^l000V/T - 1) mA, where the applied voltage V is in volt and the temperatu..
