Alternating Currents( Peak and RMS value of Alternating Current/ Voltage: Reactance and Impedance) NEET Questions

Physics - Electromagnetic Induction and Alternating Currents

Alternating Currents( Peak and RMS value of Alternating Current/ Voltage: Reactance and Impedance) MCQ Questions


7.
The capacitive reactance (XC) is given by:
A.
1/ωC
B.
ωC
C.
ω/XC
D.
1/XC
😑 View Answer Rough Work Error
ANSWER :
A. 1/ωC
8.
Inductive reactance (XL) is given by:
A.
ωL
B.
1/ωL
C.
XL/ω
D.
XL
😑 View Answer Rough Work Error
ANSWER :
B. 1/ωL
9.
In an AC circuit containing only an inductor, the phase difference between voltage and current is:
A.
0°
B.
90°
C.
180°
D.
45°
😑 View Answer Rough Work Error
ANSWER :
B. 90°
10.
In a purely capacitive circuit, the current:
A.
Leads voltage by 90°
B.
Lags voltage by 90°
C.
Remains constant
D.
Has no phase difference
😑 View Answer Rough Work Error
ANSWER :
A. Leads voltage by 90°
11.
The impedance of a series RL circuit is given by:
A.
R + XL
B.
R - XL
C.
√(R² + XL²)
D.
R/XL
😑 View Answer Rough Work Error
ANSWER :
C. √(R² + XL²)
12.
The impedance of a series RC circuit is given by:
A.
R + XC
B.
R - XC
C.
√(R² + XC²)
D.
R/XC
😑 View Answer Rough Work Error
ANSWER :
C. √(R² + XC²)