Current Electricity A copper wire is stretched so that its length is increased by 0.1 % . The change in its resistance is 0.3% 0.4% None of the listed here 0.2% 0.3% 0.4% None of the listed here 0.2% ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If the number of valence electrons of an atoms is less than 4,the substance is usually None of the listed here A semiconductor A conductor An insulator None of the listed here A semiconductor A conductor An insulator ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A closed switch has a resistance of About 50 ohms Zero About 500 ohms Infinity About 50 ohms Zero About 500 ohms Infinity ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Insulators have _______ temperature co-efficient of resistance. Negative Positive None of the listed here Zero Negative Positive None of the listed here Zero ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of human body is about 1000 ohm 10 ohm 200 ohm 25 ohm 1000 ohm 10 ohm 200 ohm 25 ohm ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The rating of a fuse wire is always expressed in Amperes Ampere-volts kWh Ampere-hours Amperes Ampere-volts kWh Ampere-hours ANSWER DOWNLOAD EXAMIANS APP
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