Question

Observe the given circuit diagrams ($X$ and $Y$) and identify the correct statement.

• A. Circuit $Y$ is a series circuit
• B. Bulb $2$ in circuit $X$ will glow, even when the bulb $1$ is fused, and switch $S_1$ is closed
• C. In circuit $Y$, bulb $3$ will glow if only switch $S_2$ is closed
• D. Both circuits $X$ and $Y$ are parallel circuits

Answer 1

The correct option is C In circuit $Y$, bulb $3$ will glow if only switch $S_2$ is closed

Circuit $X$ is series circuit and circuit $Y$ is parallel circuit. As circuit $X$ is a series circuit, so bulb $2$ will not glow if switch $S_1$ is closed and bulb $1$ is fused.