Question:
At the corners of an equilateral triangle of side a = 1m, three point charges each of 0.1C are placed. If the system is supplied energy at the rate of 1kW, calculate the time required to move one of the mid-point of the line joining the other two.
At the corners of an equilateral triangle of side a = 1m, three point charges each of 0.1C are placed. If the system is supplied energy at the rate of 1kW, calculate the time required to move one of the mid-point of the line joining the other two.
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Energy–power relation:
Time = fracEnergyPower
Updated On: Mar 20, 2026
- \(50\,\text{h}\)
- \(60\,\text{h}\)
- \(48\,\text{h}\)
- 54h
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The Correct Option is C
Solution and Explanation
Step 1: Calculate initial electrostatic potential energy of the system.
Step 2: Find change in potential energy when charge is moved to the midpoint.
Step 3: Time required: t = (Δ U)/(P) Substituting values gives: t = 48h
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