How much current will an electric bulb draw from a 220 V source, if the resistance of the bulb filament is 1200 Ω? (b) How much current will an electric heater coil draw from a 220 V source, if the resistance of the heater coil is 100 Ω?
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Answered by
6
A). V=IR
220÷1200=I
0.183A=I
B) V=IR
220÷100=I
2.2A=I
220÷1200=I
0.183A=I
B) V=IR
220÷100=I
2.2A=I
Answered by
9
(I) given V=220, R= 1200 ohm
current = 220/1200 =0.18 ampere
(ii) given V=22, R=100 ohm
current =220/100=2.2 ampere
hope it helps....
current = 220/1200 =0.18 ampere
(ii) given V=22, R=100 ohm
current =220/100=2.2 ampere
hope it helps....
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