Alternating Current

A. Its electric field
B. Its coils
C. Its magnetic field
D. Both electric and magnetic fields

A. Each increase
B. Each decrease
C. Each remains the same
D. One increases whereas that in the other decreases

A. V√/√2R
B. V/√2√R
C. V02/√2R
D. 2/√2√R

IA. V = VR+VL+VC
B. V2 = VR2+VL2+VC2
C. V2 = VR2+(VL-VC)2
D. V2 = VL2+(VR-VC)2

A. Zero
B. 45°
C. 90°
D. 180°

A. Peak values of voltage and current
B. Effective values of voltage and current
C. Instantaneous values of voltage and current
D. All of the above

A. 10mH
B. 12mH
C. 16mH
D. 20mH

A. 1Ω
B. 5Ω
C. 7Ω
D. 7Ω

A. Zero
B. 2
C. 1
D. Not definite

A. DC circuit
B. AC circuits
C. Both AC and DC circuit
D. Full wave rectifier circuit