Q29 of 126 Page 198

An ideal battery sends a current of 5A in a resistor. When another resistor of value 10 Ω is connected in parallel, the current through the battery is increased to 6A. Find the resistance of the first resistor.


Given, current in resistor,


Current in a parallel setup,


Let the resistor be R


Voltage in the first case, —————(1)


Let R’ be the equivalent resistance.


Voltage in the second case, —————(2)


now, (1) should be equal to (2).





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