Question

a 100 watt and a 500 watt bulb are joined in parallel . which bulb will glow brighter when connected in same voltage​

Answer 1

Answer:

A 100 watt will glow brighter than 500 watt bulb

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Explanation:

Answer 2

Answer:

Two bulbs of 100 W and 500 W bulb are joined in series .

To Find :

Which one will glow brighter .

Solution :

We know , in series current remains constant .

Now , power is given by :

P=i2R

Therefore ,

P1/P2=R1/R2

100/500=R1/R2

R2= 5P1

Here , resistance of 100 W bulb is less than 500 W bulb .

Therefore , bulb of 100 W will grow brighter .