Current Electricity Which of the following is the best conductor of electricity? Gold Zinc Copper Silver Gold Zinc Copper Silver ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If the efficiency of a machine is to be high, what should be low? True component of power Input power Losses kWh consumed True component of power Input power Losses kWh consumed ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Varistors are Non-linear resistors Resistor with zero temperature co-efficient Insulators Carbon resistors Non-linear resistors Resistor with zero temperature co-efficient Insulators Carbon resistors ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The current in the circuit having constant resistance is tripled. The power increases 1/9 times 1/3 times 3 times 9 times 1/9 times 1/3 times 3 times 9 times ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Voltage dependent resistors are used As current stabilizers For inductive circuits As heating elements To suppress surges As current stabilizers For inductive circuits As heating elements To suppress surges 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 increased None of these Length of heating element should be decreased Length of heating element has no effect on heating if water Length of heating element should be increased None of these Length of heating element should be decreased Length of heating element has no effect on heating if water ANSWER DOWNLOAD EXAMIANS APP
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