(a) Define electric power. State its unit. Also derive formula of power P = V x I
(b) Which will have higher resistance: a 50 W lamp bulb or a 25 W lamp bulb and by how many
times?
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@. energy used by devices per unit time
unit is watt
p=w/t
p= vq/t {v=w/q}
p=vi [i=q/t]
since,
p= vi
unit is watt
p=w/t
p= vq/t {v=w/q}
p=vi [i=q/t]
since,
p= vi
pssatchith:
The answer is incomplete. :(
as we know p is inversely proportional to r
25 watt have high resistance :)
2 times
Ok thanx
ur wlcm :○)
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