In an electrical circuit, a battery is connected to pass 20C of charge through it in a certain given time. The potential difference between two plates of the battery is maintained at 15V. The workdone by the battery is __________J.
Answer (integer)
300
Solution
<p>Given, charge passing through circuit, q = 20 C</p>
<p>Potential difference between two plates,</p>
<p>V = 15 V</p>
<p>Let W be the amount of work done by battery.</p>
<p>$\therefore$ W = qV = 20 $\times$ 15 = 300 J</p>
About this question
Subject: Physics · Chapter: Current Electricity · Topic: EMF and Internal Resistance
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