Question

A galvanometer having resistance of 200 Ω shows full deflection at 20 μA. If the galvanometer has to measure current up to 20 mA, the shunt resistance required is

• A. $\frac{200}{99}\Omega$
• B. $\frac{200}{999}\Omega$
• C. $\frac{20}{99}\Omega$
• D. 200 × 999Ω

Answer 1

Answer: (B)

$\frac{200}{999}\Omega$

Answer 2

The Correct answer is option is (B) : $\frac{200}{999}\Omega$