Question

Three bulbs with resistances R, 2R and 3R are connected in parallel to a battery. Then

• A. current through each bulb is same
• B. bulb with resistance R glows the maximum
• C. bulb with resistance 3R glows the maximum
• D. bulb with resistance 2R glows the maximum

Answer 1

The correct option is B

bulb with resistance R glows the maximum

in parallel connection all the bulbs have same potential difference across them, hence the bulb with least resistance will grow brighter because $P_{\text{output}}=\frac{V^2}{R}$