Question 7 The temperature dependence of the resistance of a non linear resistor is investigated...
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Question 7 The temperature dependence of the resistance of a non linear resistor is investigated in a laboratory having constant ambient temperature To 20 C As the temperature is raised to T 100 C the resistance changes abruptly from R 5052 to R 10052 On cooling the reverse abrupt change from 10092 5022 to takes place at T 90 C When a voltage V 80 volt is applied to the resistor a periodically varying current is established in the circuit after some time Assume Newton s law of cooling is applicable to the resistor this proportionally constant being d 1 2 Jk s The heat capacity of the resistor is c 3 J K Now answer the following questions The time period of the current oscillation is Options a 0 1 sec b 2 sec c 0 3 sec 604
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