The circuit shown has an idel ammeter with zero resistance and four identical light bulbs which are initially illuminated. A person removes the bulb `R_(4)` from it s socket there by permanently breaking the electrical circuit at that point. Which statement is true about the circuit after removing the bulb?

Options

A. The voltage across BC increases
B. The power supplied by the battery increases
C. The voltage across `R_(1)` increases
D. The bulb `R_(2)` maintains the same brightness.

Answer

A

Explanation

Before: `R_(AD)ltR_(2)`
After: `R_(AD)=R_(2)`
So, after breaking cirucit euivalent resistance b/w A and D increases so potential drop across Ad increases, So `V_(BC)` alos increases.