If power is 100watt and voltage is 220V. Find resistance
a)2.5
b)3.5
c)4.5
d)5.5
Please solve this
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If power is 100watt and voltage is 220V. Find resistance
a)2.5
b)3.5
c)4.5
d)5.5
Please solve this
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Answer:
Explanation:
(a): 25w
Solution : R=V2/P
= (220)2/100
= 484 ?
The resistance of the bulb remains constant
if the supply voltage is reduced to 110 V then V?=110 V
the power consumed by it is given by the expression = V?2/R
= (110)2/484 = 25w