Current Electricity Constantan wire is used for making starndard resistance because it has Negligibly small temperature co-efficient of resistance High specific resistance Low specific resistance High melting point Negligibly small temperature co-efficient of resistance High specific resistance Low specific resistance High melting point ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In which of the following substances the resistance decreases with increase in temperature? Silver Carbon Constantan Copper Silver Carbon Constantan Copper ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Three identical resistors are first connected in parallel and then in series. The resultant resistance of the first combination to the second will be 1/3 times 1/9 times 9 times 3 times 1/3 times 1/9 times 9 times 3 times ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a few meters of wire conductor in closed electrical circuit is Practically zero High Very high Low Practically zero High Very high Low ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of human body is about 10 ohm 25 ohm 200 ohm 1000 ohm 10 ohm 25 ohm 200 ohm 1000 ohm ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The specific resistance of a metallic conductor ______ with rise in temperature. None of the listed here Remains unchanged Increases Decreases None of the listed here Remains unchanged Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
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