Current Electricity In which of the following substances the resistance decreases with increase in temperature? Silver Constantan Copper Carbon Silver Constantan Copper Carbon ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The hot wire of electric bulb's filament is higher than its cold resistance because the temperature co-efficient of filament is None of the listed here Zero Negative Positive None of the listed here Zero Negative Positive ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Electric current is a Vector quantity Sometimes scalar and sometimes vector Scalar quantity Number only Vector quantity Sometimes scalar and sometimes vector Scalar quantity Number only ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In an electric kettle water boils in 10 m minutes. It is required to boil the boiler in 15 minutes, using same supply mains Length of heating element should be decreased Length of heating element should be increased None of these Length of heating element has no effect on heating if water Length of heating element should be decreased Length of heating element should be increased None of these Length of heating element has no effect on heating if water ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The thickness of insulation provided on the conductor depends on The magnitude of voltage on the conductor None of the listed here The magnitude of current flowing through it Both magnitude of voltage and current The magnitude of voltage on the conductor None of the listed here The magnitude of current flowing through it Both magnitude of voltage and current ANSWER DOWNLOAD EXAMIANS APP
Current Electricity An open resistor, when checked with an ohmmeter reads Infinite High but within tolerance Low but not zero Zero Infinite High but within tolerance Low but not zero Zero ANSWER DOWNLOAD EXAMIANS APP
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