CBSE Class 10 Answered
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 | 23 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 | 24 Jun, 2013, 01:11: AM
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