A bulb is connected to a battery of potential difference and internal resistance . A steady current of flows through the circuit. Calculate:

(i) The total energy supplied by the battery for 10 minutes will be J.

(ii) The energy dissipated in the bulb in 10 minutes is J.

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Detailed Solution

Concept- To answer the questions, we must first put down all the relevant data and values that are provided, followed by the formulas we must discover. The Joule unit of energy is used.
Given values: Voltage,

, Resistance of the battery,

, Current,

(i) Energy supplied by the battery: We have the formula to find the energy supplied when voltage, resistance and current is given,and the time for supplying energy by the battery is 10 minutes i.e.. 600 seconds.
To determine the energy provided, we must first determine the resistance:

Therefore,

So, the total energy supplied by the battery in 10 minutes is 1200 J . Total resistance R=8