SEE, AT LOWER TEMP.WHEN CURRENT STARTS FLOWING THE HEAT IS PRODUCED BUT VERY SOON THE RATE OF PRODUCTION OF HEAT BECOMES EQUAL TO RATE OF DISSIPATION. THERE, FORE VERY SOON THE TEMP. BECOMES CONSTANT AND HENCE IT IS SAID THT V = IR BUT AT HIGHER TEMP. THE RISE IN TEMP. IS CONDIDERABLE SINCE HEAT PRODUCED IS VERY LARGE AND HENCE RESISTANCE CHANGES CONTINUOUSLY CHANGING CURRENT AND HENCE RISE IN TEMPERATURE.N SO, IS THE CASE OF NON-OHMIC RESISTORS. THERE FORE AT LOWER TEMP., V = IR HOLDS GOOD.
Moderation Team
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