find the resistance of 100W of 220V bulb?
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Answers
Answered by
1
Answer:
R=V/I Where,R=Resistance , V=Voltage ,I=Current.. 100w at 220v, I=P/V. =100/220=0.454Amp. R=V/I; 220/0.454=484.56 ohms.
Step-by-step explanation:
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Answered by
2
Answer:
484ohm
Step-by-step explanation:
we have P=VI.
Substituting I=V/R from ohm's law, the power relationship can be rewritten as P=R/V2. From this formula, the resistance can be calculated as follows.
P=R/V2 that is, R=P/V2. The power and voltage are given as100W and 220V.
Therefore, R=220²/100
=48400/100
=484ohm
hences, the resistance of the bulb is 484ohm
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