Search
.Management Sciences
Category: Alternating Current
The phase angle between the voltage and the current in an AC circuit consisting of a resistance is______________?
0
A. Zero
B. 45°
C. 90°
D. 180°
A choke is used as a resistance in_________________?
A. DC circuit
B. AC circuits
C. Both AC and DC circuit
D. Full wave rectifier circuit
Waves emitted from the antenna are__________________?
A. Sound waves
B. Electromagnetic waves
C. Radio waves
D. Modulated waves
A wire of resistance R is coiled inductively so that its inductance is L. The impedance of the coil at a frequency of f is_______________?
A. (R+2πfL)
B. R+1/2πfL
C. (R2+f2L2)
D. (R2+4π2f2L2)
Ammeter connected in an AC circuit measures______________?
A. The exact value of the current
B. RMS value of the current
C. The net value of the current
D. The peak value of the current
Recent Comments