Home Physics Semiconductor Electronics Mix A galvanometer, with a scale divided into 15…
Physics Semiconductor Electronics Mix MCQ (Single Correct)

A galvanometer, with a scale divided into 150 equal divisions, has current sensitivity of 10 divisions per milliampere and voltage sensitivity of 2 divisions per millivolt. Find shunt for making ammeter of 6A.

A
1.25 × 10 –3 Ω
B
12.5 × 10 –3 Ω
C
125 × 10 –3 Ω
D
0.125 × 10 –3 Ω

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Text Solution

Verified by Experts
The correct answer is:
B

For galvanometer:

Resistance of galvanometer,

Full scale divisions = 150

Current for full scale deflection:

To convert into ammeter of range 6 A ,

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