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    				| 1. | The V-I graph for a good conductor makesangle 420 with V-axis. Here V denotes voltageand I denotes current. Then the resistance ofthe conductor will be(a) sin 420(c) tan 42(b) cos 42°(d) cot 42° | 
| Answer» Resistance is given by the cotangent of the angle made by curve with v axis R= cot42° option (d) is correct. | |