AIPMT PRELIMS2012Physics-Current Electricity
AIPMT PRELIMS 2012 Physics Conversion of Galvanometer MCQ Question
Type: MCQ-numerical-Medium-Class 12
A milli voltmeter of 25 milli volt range is to be converted into an ammeter of 25 ampere range. The value (in Ω) of necessary shunt will be
A
0.05
B
0.001
C
0.01
D
1
Correct Answer
Option B
Detailed Explanation
Using the formula for shunt resistance, R = (iₘRₑ)/(i - iₘ), where iₘ is the current through the meter and Rₑ is the meter resistance. Solving gives R = 0.001 Ω.
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