Current Electricity Constantan wire is used for making starndard resistance because it has High specific resistance Low specific resistance High melting point Negligibly small temperature co-efficient of resistance High specific resistance Low specific resistance High melting point Negligibly small temperature co-efficient of resistance ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Varistors are Resistor with zero temperature co-efficient Insulators Non-linear resistors Carbon resistors Resistor with zero temperature co-efficient Insulators Non-linear resistors Carbon resistors ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Conductivity is the reciprocal of Current density None of the listed here Resistivity Resistance Current density None of the listed here Resistivity Resistance ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Resistance of a tungsten lamp _____ as applied voltage increases. Remains same None of the listed here Decreases Increases Remains same None of the listed here Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Temperature coefficient of resistance is expressed in terms of ohms/°C ohms/ohm°C mhos/°C mhos/ohm°C ohms/°C ohms/ohm°C mhos/°C mhos/ohm°C ANSWER DOWNLOAD EXAMIANS APP
Current Electricity With rise in temperature the resistance of pure metals First increases and then decreases Remains constant Decreases Increases First increases and then decreases Remains constant Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
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