AIPMT MAIN2008Physics-Current Electricity
AIPMT MAIN 2008 Physics Potentiometer MCQ Question
Type: MCQ-numerical-Medium-Class 12
A cell can be balanced against 110 cm and 100 cm of potentiometer wire, respectively with and without being short circuited through a resistance of 10 Ω. Its internal resistance is
A
Zero
B
1.0 Ω
C
0.5 Ω
D
2.0 Ω
Correct Answer
Option B
Detailed Explanation
Internal resistance = (110/100 - 1) x 10Ω
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