Work done to bring 2 coulomb of charge from infinity to a is 10 j and to bring same charge to b is 20 j . What is work done to bring the same charge from a to b
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Answer: 10 joule
Explanation: W = V/q
Va - Vinfinity = 2 × 10 = 20 Volt
Vb - Vinfinity = 2×20 = 40 Volt
Vb - Va = Wq
W = 20/2 = 10 joule
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