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A resistor has initial resistance R(0) a...

A resistor has initial resistance `R_(0)` at `0^(@)C` now it is connected to an ideal battery of constant `emf=v` if the temperature co-efficient of resistance is `alpha`, then after how much time will its temperature be `T^(@)C` mass of the wire is m, specific heat capacity of the wire is S. (Assume the resistance veries linearly with temperature Also neglect heat loss the surrounding)

A

`(msR_(0)T)/(v^(2))`

B

`(m_(0)SR_(0))/(v^(2))(T//2)`

C

`(mSR_(0))/(v^(2))(T+(alphaT^(2))/(2))`

D

`(mSR_(0))/(v^(2))T(1+alphaT)`

Text Solution

AI Generated Solution

To solve the problem step by step, we will analyze the relationship between resistance, temperature, and heat generated in the resistor. ### Step 1: Understand the relationship between resistance and temperature The resistance \( R \) of the resistor at a temperature \( T \) can be expressed as: \[ R(T) = R_0 (1 + \alpha T) \] where \( R_0 \) is the initial resistance at \( 0^\circ C \), and \( \alpha \) is the temperature coefficient of resistance. ...
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