1
AIIMS 2017
MCQ (Single Correct Answer)
+1
-0.33

Two batteries, one of emf $$18 \mathrm{~V}$$ and internal resistance $$2 \Omega$$ and the other of emf $$12 \mathrm{~V}$$ and internal resistance $$1 \Omega$$ are connected as shown. The voltmeter $$V$$ will record a reading of

AIIMS 2017 Physics - Current Electricity Question 3 English

A
14 V
B
15 V
C
18 V
D
30 V
2
AIIMS 2017
MCQ (Single Correct Answer)
+1
-0.33

Assertion : A potentiometer is preferred over that of a voltmeter for measurement of emf of a cell.

Reason : Potentiometer does not draw any current from the cell.

A
Both assertion and reason are true and reason is the correct explanation of assertion
B
Both assertion and reason are true but reason is not the correct explanation of assertion
C
Assertion is true but reason is false
D
Both assertion and reason are false.
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