What is electric power? Incorporate H = I²Rt where H is the amount of heat generated by a current of I in a resistor R at t time. विद्युत शक्ति क्या है ? निगमन करें H = I²Rt जहाँ H , किसी प्रतिरोधक R में विद्युत धारा I द्वारा t समय में उत्पन्न ऊष्मा की मात्रा है ।
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electric power refers to the rate of doing electric work in unit time..
Let V be the potential difference across current I.
Let Q be the no. of charges flowing in unit time t. The work done in moving electric charges to potential difference is W. The energy needed to done work is QV.
therefore, P=VintoQ/t
we know that, Q/t =I
now, P=VI
energy = Pintot
therefore, H=VIt
also, V=IR
hence, H=I^2Rt
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