Question
Physics Question on Electric Current
A moving coil galvanometer is converted into an ammeter of range 0 to 5mA. The galvanometer resistance is 90Ω and the shunt resistance has a value of 10Ω. If there are 50 divisions in the galvanometer-turnedammeter on either sides of zero, its current sensitivity is
A
1 × 105 A/div
B
2 × 104 A/div
C
1 × 105 div/A
D
2 × 104 div/A
Answer
1 × 105 div/A
Explanation
Solution
The correct answer is (C) : 1 × 105 div/A.