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100 J of heat is produced each second in a 4Ω resistor. The potential difference across the resistor will be: |
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Answer» The answer will be 20 volt.Explanation: Given, Heat = 100J; Resistance = 4 ohm; Time = 1 second;ACCORDING to Joule's LAW, H = ; H = ( by V = IR ) (i)Now put the value of given VARIABLES in equation (i);So, ⇒ 100 = ; (here, T is 1 because we are ASKED for every second.) ⇒ 400 = ⇒ V = = 20 VTherefore, the potential difference will be 20 V when 100 J of energy is released every second in a resistor of resistance 4 ohm. |
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