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.Management Sciences
Category: Basic Electrical Mcqs
If P is the power of a star connected system then what will be power of an equivalent delta connected system?
0
A. P
B. 3P
C. P/3
D. None of the above
All good conductors have high____________?
A. conductance
B. resistance
C. reluctance
D. thermal conductivity
74. Sparking occurs when a load is switched off because the circuit has high_________?
A. resistance
B. inductance
C. capacitance
D. impedance
The substances which have a large number of free electrons and offer a low resistance are called____?
A. insulators
B. inductors
C. semi-conductors
D. conductors
Two resistances Rl and Ri are connected in series across the voltage source where Rl>Ri. The largest drop will be across______________?
A. Rl
B. Ri
C. either Rl or Ri
D. none of them
The resistance of a few meters of wire conductor in closed electrical circuit is____________?
A. practically zero
B. low
C. high
D. very high
In a series circuit with unequal resistances______________?
A. the highest resistance has the most of the current through it
B. the lowest resistance has the highest voltage drop
C. the lowest resistance has the highest current
D. the highest resistance has the highest voltage drop
A current of 16 amperes divides between two branches in parallel of resistances 8 ohms and 12 ohms respectively. The current in each branch is_____________?
A. 6.4 A, 6.9 A
B. 6.4 A, 9.6 A
C. 4.6 A, 6.9 A
D. 4.6 A, 9.6 A
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