A Parallel circuit has certain characteristics and basic rules: A parallel circuit has two or more paths for current to flow through. Voltage is the same across each component of the parallel circuit. The sum of the currents through each path is equal to the total current that flows from the source.
This set
of Basic Electrical Engineering Multiple Choice Questions & Answers (MCQs)
focuses on “Parallel Networks” Set-5.
29. In a
parallel resistive circuit:
A. there is more than one current path
between two points
B. the voltage applied divides between the
branches
C. the total branch power exceeds the source
power
D. the total circuit conductance is less
than the smallest branch conductance
Answer: A
30. What
is the total resistance?
a) 7 k
b) 1 k
c) 706
d) 353
Answer: D
Explanation: Use
Parallel Circuit Equation and find Req
31. Kirchhoff's
current law for parallel circuits states that the:
a) sum of all branch voltages equals zero
b) total circuit resistance is less than the
smallest branch resistor
c) sum of currents into a junction is equal to
the difference of all the branch currents
d) sum of the total currents flowing out of a
junction equals the sum of the total currents
flowing into that junction
Answer: D
32. Which
component is open?
a) R1
b) R2
c) R3
d) R4
Answer: C
33. If
550 mA of current leaves a node that had 250 mA entering from one branch, how
much current would enter from the other?
a) 250 mA
b) 300 mA
c) 550 mA
d) 800 mA
Answer: B
34. What
procedure should be followed when troubleshooting with an ammeter or
voltmeter?
a) Short the leads and adjust.
b) Check the meter’s external power supply.
c) Start with the highest scale and adjust down
to a lower scale.
d) Start with the lowest scale and adjust up to
a higher scale.
Answer: C
35. A
parallel circuit is also used as a divider for:
a) conductance
b) voltage
c) current
d) power
Answer: C

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