Current Electricity The specific resistance of a metallic conductor ______ with rise in temperature. Decreases None of the listed here Increases Remains unchanged Decreases None of the listed here Increases Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Voltage dependent resistors are used For inductive circuits To suppress surges As current stabilizers As heating elements For inductive circuits To suppress surges As current stabilizers As heating elements ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A copper wire is stretched so that its length is increased by 0.1 % . The change in its resistance is 0.4% 0.3% 0.2% None of the listed here 0.4% 0.3% 0.2% None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following material has nearly zero temperature co-efficient of resistance? Manganin Carbon Porcelain Copper Manganin Carbon Porcelain Copper ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Constantan wire is used for making starndard resistance because it has High melting point Low specific resistance Negligibly small temperature co-efficient of resistance High specific resistance High melting point Low specific resistance Negligibly small temperature co-efficient of resistance High specific resistance ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Specific resistance of a substance is measured in m/Ω Ω/m Ω-m None of the listed here m/Ω Ω/m Ω-m None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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