A resistance of 900 Ω is connected in series with a galvanometer of resistance 100 Ω. A potential difference of 1 volt produces 100 division deflection in the galvanometer. Find the figure of merit of galvanometer?

Question

A resistance of 900 Ω is connected in series with a galvanometer of resistance 100 Ω. A potential difference of 1 volt produces 100 division deflection in the galvanometer. Find the figure of merit of galvanometer? (A) 10-6 A / div (B) 10-4 A / div (C) 10-7 A / div (D) 10-5 A / div

Tardigrade Admin · Accepted Answer

K =( I /θ)=( V / R θ) K=(1/(900+100) 100)=(1/105) K =10-5 A / division

Q. A resistance of $900Ω$ is connected in series with a galvanometer of resistance $100Ω$ . A potential difference of 1 volt produces 100 division deflection in the galvanometer. Find the figure of merit of galvanometer?

$1 0^{- 6} A / d i v$

$1 0^{- 4} A / d i v$

$1 0^{- 7} A / d i v$

$1 0^{- 5} A / d i v$

$K = \frac{I}{θ} = \frac{V}{Rθ}$
$K = \frac{1}{( 900 + 100 ) 100} = \frac{1}{1 0 ^{5}}$
$K = 1 0^{- 5} A /$ division

Q. A resistance of 900Ω is connected in series with a galvanometer of resistance 100Ω. A potential difference of 1 volt produces 100 division deflection in the galvanometer. Find the figure of merit of galvanometer?

10−6A/div

10−4A/div

10−7A/div

10−5A/div