Q. A coil has a resistance of 4 ohms and an inductance of 2H. It is connected to a 20V dc supply. Calculate the value of voltage 1s after the switch is closed.

View solution

Q. Among the following, which is the right formula for decay in an inductive circuit?

View solution

Q. The discharging time constant of a circuit consisting of an inductor is the time taken for the voltage in the inductor to become __________ % of the initial voltage.

View solution

Q. A coil has a resistance of 4 ohms and an inductance of 2H. It is connected to a 20V dc supply. Calculate the initial value of the voltage across the inductor.

View solution

Q. A coil has a resistance of 4 ohms and an inductance of 2H. It is connected to a 20V dc supply. Calculate the final value of the voltage across the inductor.

View solution

Q. An RL network is one which consists of ____________

View solution

Q. In an RL series circuit, when the switch is closed and the circuit is complete, what is the response?

View solution

Q. At steady state, the current in the inductor is?

View solution

Q. Initially, when the switch in a series RL circuit is closed, the inductor acts as?

View solution

Q. Initially, when the switch in a series RL circuit is closed, the current in the inductor is?

View solution

Q. If the current in a coil having a constant inductance of L henrys grows at a uniform rate, what is the value of the average current?

View solution

Q. What is the power in the magnetic field if the current in a coil has a constant inductance of L henrys grows at a uniform rate?

View solution

Q. What is the energy stored in the magnetic field if the current in a coil has a constant inductance of L henrys grows at a uniform rate?

View solution

Q. Find the average current in an inductor if the total current in the inductor is 26A.

View solution

Q. Calculate the power in an inductive circuit if the inductance is 10H, the current flowing in the inductor is 2A in 4s.

View solution

Q. Calculate the value of stored energy in an inductor if the value of inductance is 20H and 4A of current flows through it.

View solution

Q. Calculate the emf induced in an inductor if the inductance is 10H and the current is 2A in 4s.

View solution

Q. Calculate the value of emf in an inductor if the value of inductance is 15H and an average current of 5A flows through it in 10s.

View solution

Q. Calculate the current in an inductor if the energy stored is 160J and the inductance is 20H.

View solution

Q. Find the time taken for the current in an inductor to change to 2A from 0A if the power in the inductor is 5W. The value of inductance is 10H.

View solution