Current Electricity Which of the following material has nearly zero temperature co-efficient of resistance? Manganin Copper Carbon Porcelain Manganin Copper Carbon Porcelain ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Ohm's law is not applicable to Dc circuits Small resistors Semi-conductors High currents Dc circuits Small resistors Semi-conductors High currents ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In case of liquids, ohm's law is There is no relation between current and p. d Fully obeyed None of the listed here Partially obeyed There is no relation between current and p. d Fully obeyed None of the listed here Partially obeyed 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
Current Electricity A light bulb draws 300 mA when the voltage across it is 240 V. The resistance of the light bulb is 1000 Ω 600 Ω 800 Ω 400 Ω 1000 Ω 600 Ω 800 Ω 400 Ω ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Resistance of a carbon filament lamp _______ as the applied voltage increases. Increases Remains same Decreases None of the listed here Increases Remains same Decreases None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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