A resistor develops of thermal energy in when a current of is passed through it. If the current is increased from to , what will be the energy developed in the .
Step 1. Given Data,
Thermal energy of a resistor
Time
Current
Current ,
Let be the energy developed in the .
Step 2. Calculate the value of energy developed in the .
Using Joule's law of heating,
Thermal energy when a current passed through the rasistor,
Thermal energy when a current passed through the rasistor,
Keeping all other parameters same we are changing current from to .
Thus,
The value of energy developed in the is
Hence, option C is correct.