Current Electricity In which of the following substances the resistance decreases with increase in temperature? Carbon Constantan Silver Copper Carbon Constantan Silver Copper ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Ohm's law is not applicable to Circuits with low current densities Carbon resistors High voltage circuits Vaccum tubes Circuits with low current densities Carbon resistors High voltage circuits Vaccum tubes 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 600 Ω 400 Ω 800 Ω 1000 Ω 600 Ω 400 Ω 800 Ω 1000 Ω ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which method can be used for absolute measurement of resistances? Wheastone bridge method Releigh method Lorentz method Ohm's law method Wheastone bridge method Releigh method Lorentz method Ohm's law method ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Sparking occurs when a load is switched off because the circuit has high Resistance Inductance Capacitance Impedance Resistance Inductance Capacitance Impedance ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a conductor varies inversely as Temperature Resistivity Length Are of cross-section Temperature Resistivity Length Are of cross-section ANSWER DOWNLOAD EXAMIANS APP
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