If a number of bulbs of different wattages are joined in parallel, which bulb will glow with maximum brightness?

Open in App

Solution

Resistance of bulb $P = \frac{V^{2}}{R}$
In parallel connection, same potential difference develops through all the bulbs.
So, brightness is inversely proportional to resistance and thus is directly proportional to power of bulb.
Thus, bulb having the most power and least resistance will glow with maximum brightness.

Suggest Corrections

Similar questions

Q. Which bulb will glow with maximum brightness in case bulbs of different wattages are joined in series?

Q. Three in incandescent bulbs of 100 watt each are connected in series in electric circuit. In another circuit, another set of three bulbs of the same wattage are connected in parallel to the same source. Will the bulb in the two circuit glow with the same brightness? justify answer.

Q. Three identical electric bulbs are connected parallel to each other. On connecting their combination across a source of emf having stabilized voltage and negligible resistance, all bulbs glow with full brightness. Suddenly a bulb fuses. The other bulbs will glow.

When the two identical bulbs are connected in parallel they glow with same brightness there as when they are connected in series they again Glow with Same brightness explain

Join BYJU'S Learning Program

If a number of bulbs of different wattages are joined in parallel, which bulb will glow with maximum brightness?

Resistance of bulb P=V2RIn parallel connection, same potential difference develops through all the bulbs.So, brightness is inversely proportional to resistance and thus is directly proportional to power of bulb.Thus, bulb having the most power and least resistance will glow with maximum brightness.