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The frame of an electric motor is earthed through three earthing plates resistances 30 Ω, 20 Ω and 10 Ω respectively. During fault the energy dissipated by three plates are W1, W2 and W3. Then | |
A. | W1 > W2 > W3 [Wrong Answer] |
B. | W1 < W2 < W3 [Correct Answer] |
C. | W1 = W2 = W3 [Wrong Answer] |
D. | W1 + W3 < W2 [Wrong Answer] |