Question

In the following figure, the resistance of the galvanometer G is 50 ohm. Of the following alternatives in which case are the currents arranged strictly in the order of decreasing magnitudes with the larger coming earlier?

• A. I, I₁, I_g, I₂
• B. I, I_g, I₁, I₂
• C. I, I₂, I₁, I_g
• D. I_g, I₁, I₂, I

Answer 1

Answer: (C)

I, I₂, I₁, I_g

Answer 2

Q $\frac{10}{100} = \frac{1}{10}$

∴ I_g is zero

Also, In parallel combination

I ∝ $\frac{1}{R}$

∴ I₂ > I,

∴ I, I₂, I₁, I_g