JEE Main 2022 · 27 Jun · Shift 1 · Physics Q36

← JEE Main 2022 · 27 Jun · Shift 1

PhysicsSingle correct+4 / -1Question 36 of 90

A $72\ \Omega$ galvanometer is shunted by a resistance of $8\ \Omega$ . The percentage of the total current which passes through the galvanometer is :

0.1%

10%

25%

0.25%

Answer and worked solution

Official answer: B

Shunt. $\dfrac{I_g}I=\dfrac S{S+G}=\dfrac8{80}=10\%$ .

(B)

Topics:Moving coil galvanometer Ammeters and voltmeters

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JEE Main 2022 · 27 Jun · Shift 1, Physics question 36