Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-2
16. A passive network
a) Has no current source
b) Has no e.m.f. source
c) Has neither of the above
d) Has either of the above
Ans: (b)
The above illustration is called
a) Reciprocity theorem
b) Thevenin’s theorem
c) Superposition theorem
d) Duality
Ans: (b)
a) 110 ohms
b) 120 ohms
c) 115 ohms
d) 112.5 ohms
e) 125 ohms
Ans: (e)
a) Lagging
b) Leading
c) Zero
d) Unity,
Ans: (b)
a) 2 < 10°
b) 2 < 30°
c) 2 < -10°
d) 2 < 20°
Ans: (a)
a) – a – jb
b) – a + jb
c) A - jb
d) Ja – b
Ans: (c)
a) Resistance
b) Voltage
c) Inductance
d) Capacitance
Ans: (d)
a) 50 Hz
b) 75 Hz
c) 100 Hz
d) 60 Hz
Ans: (c)
a) Sinusoidal
b) Oscillating
c) None-oscillating
d) Square wave
Ans: (a)
a) 1 New
b) 2 New
c) 0.05 New
d) 0.5 New
Ans: (c)
a) Repulsion
b) Attraction
c) Zero
d) Either (a) or (b)
Ans: (b)
a) The flow of current in the electric circuit involves discontinuous expenditure of energy.
b) The flow of current in the electric circuit requires energy for creating the current but not to maintain it.
c) In the magnetic circuit energy is needed continuously to maintain the flux.
d) In the magnetic circuit energy is needed for creating the flux initially but not to maintain it.
Ans: (c)
a) 6.32 A
b) 3.16 A
c) 3.7 A
d) 4.0 A
Ans: (b)
a) The same heat as produced by a.c. when flowing through the same circuit
b) The less heat than produced by a.c. when flowing through the same circuit
c) The more heat than produced by a.c. when flowing through the same circuit
d) 14.4 calories
Ans: (a)
a) The half cycle
b) The whole cycle
c) Unsymmetrical part of the waveform
d) The quarter cycle
Ans: (b)
