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CBSE Class 10 Answered

numerical! urgent tmorow is test
Asked by indrayani | 04 May, 2010, 12:43: PM
Expert Answer

Resistance of the electric iron will be equal to the equivalent resistance of the three,

i.e. 1/R = [1/100 + 1/50 + 1/500]

             = [(50+100+1)/500]

             = 151/500

therefore, R = 500/151 = 3.311 ohm

Current = V/R = 220/3.311 = 66.445 ampere

Hope this helps.
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Answered by | 05 May, 2010, 10:48: AM

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