Question

An ammeter of resistance 0.81 ohm reads up to 1 A. The value of the required shunt to increase the range to 10 A is ______.

विकल्प

• 0.9 ohm

• 0.09 ohm

• 0.03 ohm

• 0.3 ohm

Answer 1

An ammeter of resistance 0.81 ohm reads up to 1 A. The value of the required shunt to increase the range to 10 A is 0.09 ohm.

Explanation:

9 × S =  1 × 0.81

S = `0.81/9 = 0.09 Omega`