Question

what will happen if any bulb goes out? only c will remain lit. only b will remain lit. all bulbs will go out. only a will remain lit.

Explanation:

Step1: Analyze the circuit type

The bulbs A, B, and C are connected in series. In a series circuit, the current has only one path to flow through all the components.

Step2: Determine the effect of a bulb going out

If any one bulb (e.g., A, B, or C) goes out (becomes an open - circuit), it breaks the single current path. Since there is no alternative path for the current in a series circuit, the current stops flowing through all the bulbs.

Answer:

All bulbs will go out.