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The density of `Cu` is `8.94 g cm^(-3)`. The quantity of electricity neede to plate an area `10 cm xx 10 cm` to a thickenss of `10^(-2) cm` using `CuSO_4` solution qould be .A. ` 13586 C`B. ` 27172 C`C. ` 40758C`D. ` 20348 C` |
Answer» Correct Answer - B `(axx b xx c) xx rho = (Eit)/(96500)` `(10 xx 10xx 10^(-2)) xx (8.94) = (63.5)/2 xx (It)/(96500)` (It) `= 27172 C`. |
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