Current Electricity Which of the following material has nearly zero temperature co-efficient of resistance? Carbon Copper Porcelain Manganin Carbon Copper Porcelain Manganin ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Eureka has _______ temperature co-efficient of resistance. None of the listed here Positive Almost zero Negative None of the listed here Positive Almost zero Negative 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 800 Ω 600 Ω 400 Ω 1000 Ω 800 Ω 600 Ω 400 Ω 1000 Ω ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Ohm's law is not applicable to Circuits with low current densities High voltage circuits Vaccum tubes Carbon resistors Circuits with low current densities High voltage circuits Vaccum tubes Carbon resistors ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A rheostat differs from potentiometer in the respect that it Has large number of turns Has higher wattage rating Offers large number of tapping Has lower wattage rating Has large number of turns Has higher wattage rating Offers large number of tapping Has lower wattage rating ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a conductor varies inversely as Are of cross-section Temperature Length Resistivity Are of cross-section Temperature Length Resistivity ANSWER DOWNLOAD EXAMIANS APP
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