CUET-UG SERIES Physics
Lcr Circuit
3 previous year questions.
Volume: 3 Ques
Yield: Medium
High-Yield Trend
3
2023 Chapter Questions 3 MCQs
01
PYQ 2023
medium
physics ID: cuet-ug-
In a series LCR circuit an ac voltage source is connected. When inductor is removed from the circuit, the phase difference between the voltage and the current in the circuit is . If capacitor is removed from the circuit instead of inductor, the phase difference is again . What is the power factor of the circuit?
1
2
3
4
1
02
PYQ 2023
medium
physics ID: cuet-ug-
Choose the correct statements from the following:
A. Induced emf opposes any change in the current in a circuit
B. Induced emf in a closed coil can be increased by increasing the number of turns in the coil
C. Varying current in a coil can not induce emf in a neighbouring coil.
D. An LCR circuit has zero impedance at resonant frequency
E. Average power supplied to an inductor over one complete cycle is zero
Choose the correct answer from the options given below:
A. Induced emf opposes any change in the current in a circuit
B. Induced emf in a closed coil can be increased by increasing the number of turns in the coil
C. Varying current in a coil can not induce emf in a neighbouring coil.
D. An LCR circuit has zero impedance at resonant frequency
E. Average power supplied to an inductor over one complete cycle is zero
Choose the correct answer from the options given below:
1
A, C, D and E only
2
B, C and D only
3
A, B and E only
4
C, D and E only
03
PYQ 2023
medium
physics ID: cuet-ug-
Match List I with List II
| LIST I | LIST II | ||
| A. | Quality factor of a circuit | I. | |
| B. | Impedance in an ac circuit | II. | |
| C. | Resonant frequency of a LCR circuit | III. | |
| D. | Instantaneous power supplied to a capacitor | IV. |
Choose the correct answer from the options given below:
1
A-I, B-II, C-III, D-IV
2
A-II, B-III, C-I, D-IV
3
A-III, B-IV, C-I, D-II
4
A-IV, B-I, C-II, D-III