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(a) What is meant by heating effect of electric current ? Give two applications of heating effect of current. (b) State the law relating heat dissipated in an electric circuit with the current, potential difference and time. (c) 50 J of heat is produced each second in a 2 Ω resistor. Find the potential difference across the resistor.

Answer» (a) What is meant by heating effect of electric current ? Give two applications of heating effect of current.
(b) State the law relating heat dissipated in an electric circuit with the current, potential difference and time.
(c) 50 J of heat is produced each second in a 2 Ω resistor. Find the potential difference across the resistor.


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