This set
of Basic Electrical Engineering Multiple Choice Questions & Answers (MCQs)
focuses on “Parallel Networks” Set-3.
15. A
parallel circuit differs from a series circuit in that a parallel circuit has
a) no path for current flow
b) fewer paths for current flow
c) one path for current flow
d) more than one path for current flow
Answer: D
16. In
the given circuit, Channel 1 of the stereo amplifier outputs 12 V to the
speakers.
How much total current is the amplifier
providing to the speakers?
a) 0 A
b) 1.5 A
c) 3 A
d) More information is needed to find the total
current provided to the speakers.
Answer: C
17. If
two parallel-connected resistors dissipate 6 watts and 10 watts of power, then
what is the total power loss?
a) 3.75 watts
b) 4 watts
c) 16 watts
d) 60 watts
Answer: C
18. Which
component is shorted?
a) R1
b) R2
c) R3
d) R4
Answer: D
19. In the given circuit, Channel
1 of the stereo amplifier outputs 12 V to the speakers.
How much total power is the amplifier
delivering to the speakers?
a) 0 W
b) 18 W
c) 36 W
d) More information is needed to find the total
power delivered to the speakers.
Answer: C
Explanation:
Req = R1 X R2 = 8 x 8 / 16 =
4
R1 + R2
P = V2 / R = 12 x 12 / 4 = 36 w2
20. If a
1 k and a 2 k resistor are parallel-connected across a 12 V supply, how much
current is received by the 2 k resistor?
A. 4 mA
B. 6 mA
C. 8 mA
D. 12 mA
Answer: B
Explanation:
In parallel circuit
voltage remains same across the resistor,
Hence, current received by the 2 k resistor = 12
/ (2 x 1000) = 6 mA
21. What
does VS equal in the given circuit?
a) 0 V
b) 9 V
c) 27 V
d) More information is needed to find VS.
Answer: B
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