LCR Series Circuit and Resonance NEET Questions

Physics - Electromagnetic Induction and Alternating Currents

LCR Series Circuit and Resonance MCQ Questions


13.
The impedance of an LCR circuit at resonance depends on:
A.
None
B.
Capacitance
C.
Both L and C
D.
Resistance
😑 View Answer Rough Work Error
ANSWER :
D. Resistance
14.
The reactance of an inductor in an AC circuit is given by:
A.
1/(ωC)
B.
L/ω
C.
ωL + 1/ωC
D.
ωL
😑 View Answer Rough Work Error
ANSWER :
D. ωL
15.
In a series LCR circuit, at resonance, the impedance of the circuit is

NEET - 2015

A.
Maximum
B.
Minimum
C.
Zero
D.
Infinite
😑 View Answer Rough Work Error
ANSWER :
B. Minimum
16.
The reactance of a capacitor in an AC circuit is given by:
A.
Lω
B.
ωC
C.
Lω²
D.
1/ωC
😑 View Answer Rough Work Error
ANSWER :
D. 1/ωC
17.
At resonance, the reactance of the inductor and capacitor:
A.
Neutralize each other
B.
Add up
C.
Oppose each other
D.
Cancel each other
😑 View Answer Rough Work Error
ANSWER :
D. Cancel each other
18.
The energy stored in the capacitor at resonance is:
A.
1/2 CV²
B.
1/2 LI²
C.
Zero
D.
Depends on R
😑 View Answer Rough Work Error
ANSWER :
A. 1/2 CV²