2 bulbs of 500w and 200w are manufactured to operate on 220v line.What will be the ratio of heat produced in 500w and 200w bulb , when they are joined a)in parallel b)in series
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Answered by
4
the resistances are 96.8 ohm and 242 ohm
a) in parallel
potential difference is same
so the ratio is 242/96.2
b) in series
current is same
so it is 96.2/242
a) in parallel
potential difference is same
so the ratio is 242/96.2
b) in series
current is same
so it is 96.2/242
Answered by
5
heat produced ==
calculate resistances using power=v
a)in parallel combination v is same
heat ratio can be calculated as=
b)similarly in series current is same
[/tex]=
calculate resistances using power=v
a)in parallel combination v is same
heat ratio can be calculated as=
b)similarly in series current is same
[/tex]=
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