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On calculating the strength of current in amperes if a charge of 840 C (coulomb) passes through an electrolyte in 7 minutes, it will be _______.(A) 1 (B) 2 (C) 3 (D) 4 |
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Answer» (B) 2 amperes Q = It ∴ I = \(\frac{Q}{t} = \frac{840}{7\times60}\) = 2 amperes |
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