two electric bulbs of 100w and 40w are given.which one will glow brighter when they are connected in parallel? WHY?

Asked by sonali garg | 23rd Jun, 2013, 08:08: PM

Expert Answer:

on connecting in parallel, both of them will share equal potential difference equal to the supply. Thus since, Power, P = V^2/R where R is resistance, the 100 W bulb will have lower Resistance and thus more current will flow through it and it will glow brighter.

Answered by  | 24th Jun, 2013, 01:11: AM

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