Kirchhoff’s Laws and their Applications NEET Questions

Physics - Current Electricity

Kirchhoff’s Laws and their Applications MCQ Questions


7.
Kirchhoff's laws are applicable to:
A.
DC circuits only
B.
Neither DC nor AC circuits
C.
Both DC and AC circuits
D.
AC circuits only
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ANSWER :
C. Both DC and AC circuits
8.
While applying Kirchhoff's loop rule, the EMF of a cell is taken as positive when:
A.
Always negative
B.
Always positive
C.
We move from negative to positive terminal of the cell
D.
We move from positive to negative terminal of the cell
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ANSWER :
C. We move from negative to positive terminal of the cell
9.
While applying Kirchhoff's loop rule, the potential drop across a resistor R carrying current I in the direction of traversal is taken as:
A.
+I/R
B.
Zero
C.
+IR
D.
−IR
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ANSWER :
D. −IR
10.
If the algebraic sum of changes in potential around a closed loop is not zero, this would violate the law of conservation of:
A.
Charge
B.
Mass
C.
Momentum
D.
Energy
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ANSWER :
D. Energy
11.
If the sum of currents entering a junction is not equal to sum of currents leaving the junction, this would violate the law of conservation of:
A.
Momentum
B.
Energy
C.
Force
D.
Charge
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ANSWER :
D. Charge
12.
In a Wheatstone bridge, when the bridge is balanced, the current through the galvanometer is:
A.
Equal to current through battery
B.
Maximum
C.
Half of battery current
D.
Zero
😑 View Answer Rough Work Error
ANSWER :
D. Zero