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3.A copper wire of length l and radius r is nickel plated till its final radius R and length l.If the specific resistance of nickel and copper be Kn and Kc,then the conductance of the nickelled wire? |
| Answer» 3.A copper wire of length l and radius r is nickel plated till its final radius R and length l.If the specific resistance of nickel and copper be Kn and Kc,then the conductance of the nickelled wire? | |