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प्रश्न
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उत्तर
We know that,
P=VI= I1R
Given, P = 1200 watt , I= 5A
R = `"P"/"I"^2 = 1200/(5 xx 5) = 48 Omega`
and, V = `"P"/"I" = 1200/5` = 240 V
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