1.

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

Answer»

(B) 2 amperes

Q = It

∴ I = \(\frac{Q}{t} = \frac{840}{7\times60}\)

= 2 amperes



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