Question 31 : Calculate the power in an inductive circuit if the inductance is 10H, the current flowing in the inductor is 2A in 4s.
1. 50W
2. 4W
3. 5W
4. 10W
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Question 32 : Find the average current in an inductor if the total current in the inductor is 26A.
1. 10A
2. 26A
3. 13A
4. 5A
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Question 33 : 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?
1. LI/2
2. LI²/2
3. L/2I
4. L/2I²
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Question 34 : 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?
1. LI/2t
2. LI²/2t
3. L/2It
4. L/2I²t
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Question 35 : 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?
1. I
2. I/2
3. I/4
4. 0
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Question 36 : Initially, when the switch in a series RL circuit is closed, the current in the inductor is?
1. Maximum
2. Minimum
3. Zero
4. Infinity
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Question 37 : At steady state, the current in the inductor is?
1. Maximum
2. Minimum
3. Zero
4. Infinity
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Question 38 : In an RL series circuit, when the switch is closed and the circuit is complete, what is the response?
1. Response does not vary with time
2. Decays with time
3. Increases with time
4. First increases, then decrease
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Question 39 : An RL network is one which consists of ____________
1. Resistor and capacitor in parallel
2. Resistor and capacitor in series
3. Resistor and inductor in parallel
4. Resistor and inductor in series
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Question 40 : 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.
1. 5V
2. 10V
3. 0 V
4. 20V
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