Q. 15.0( 1 Vote )

Two resistors hav A. equal amounts of thermal energy must be produced in the resistors.

B. unequal amounts of thermal energy may be produced

C. the temperature must rise equally in the resistors

D. the temperature may rise equally in the resistors.

Answer :

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When current passes through a resistor, the heat produced by Joule’s heating effect is given by-




where,


I =current


R = resistance of the resistor


t = time for which current is flowing


When the resistors are in series, the current through them will be same.


So, the amount of thermal energy evolved in the resistors is same for each of the resistor.


The rise or fall in the temperature of the resistance will depend on the shape and size of the resistor.


So, the rise in the temperature of the two resistances may become equal.

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