Current Electricity With rise in temperature the resistance of pure metals Remains constant Decreases First increases and then decreases Increases Remains constant Decreases First increases and then decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of conductor varies inversely as Resistivity Area of cross-section Temperature Length Resistivity Area of cross-section Temperature Length ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Electrical current is due to the flow of Negative charges only Positive charges only Neutral particles only Both positive and negative charges Negative charges only Positive charges only Neutral particles only Both positive and negative charges ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Conductance is reciprocal of Inductance Capacitance Reluctance Resistance Inductance Capacitance Reluctance Resistance 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 Eureka has _______ temperature co-efficient of resistance. None of the listed here Positive Negative Almost zero None of the listed here Positive Negative Almost zero ANSWER DOWNLOAD EXAMIANS APP