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WorksheetsNMJ11303
Total questions: 14
Worksheet time: 5mins
In DC steady state, an inductor behaves like a short circuit.
True
False
A capacitor allows sudden changes in voltage across it.
True
False
The time constant for an RL circuit increases if resistance decreases.
True
False
For a first-order circuit, the governing equation involves a first derivative.
True
False
In a second-order RLC circuit, energy is stored in both electric and magnetic fields.
True
False
If a capacitor of 4 F is connected to 6 V, what is the stored charge?
24 C
10 C
6 C
12 C
In a source-free RC circuit, what happens to the voltage across the capacitor over time?
It increases exponentially.
It remains constant
It decays exponentially.
It oscillates.
In an RL circuit, L = 2 H and R = 1 Ω, what is the time constant, τ?
0.5 s
1 s
2 s
3 s
Which of the following is TRUE about inductors, EXCEPT:
Inductors oppose sudden changes in current.
Inductors store energy in magnetic fields.
Inductors behave as short circuits in steady-state DC.
Inductors allow sudden changes in voltage.
Which of the following is TRUE about capacitors, EXCEPT:
Capacitors store energy in electric fields.
The energy stored in a capacitor is 1/2 CV².
A capacitor behaves like a short circuit in DC steady state.
A capacitor opposes sudden changes in voltage.
What happens to the voltage across a capacitor when it is charged to a certain voltage in a DC circuit?
The voltage decreases over time.
The voltage increases exponentially.
The voltage remains constant once fully charged.
The voltage keeps oscillating.
The time constant for an RC circuit is given by τ=RC.
True
False
A capacitor has a capacitance of 5 µF and is charged to 10 V. What is the energy stored in the capacitor?
250 µJ
500 µJ
100 µJ
200 µJ
In an RL circuit, the current decreases from 10 A to 2 A in 0.2 s. If the resistance is R=5 Ω, what is the inductance L?
0.2 H
0.5 H
1.0 H
2.0 H
