Current Electricity The hot wire of electric bulb's filament is higher than its cold resistance because the temperature co-efficient of filament is Zero Negative None of the listed here Positive Zero Negative None of the listed here Positive ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Two bulbs of 500 W and 200 W rated at 250 V will have resistance ratio as 25 : 4 4 : 25 5 : 2 2 : 5 25 : 4 4 : 25 5 : 2 2 : 5 ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Electric current is a Number only Sometimes scalar and sometimes vector Scalar quantity Vector quantity Number only Sometimes scalar and sometimes vector Scalar quantity Vector quantity ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A field of force can exist only between Two metal particles Two atoms Two ions Two molecules Two metal particles Two atoms Two ions Two molecules ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following is the best material for making connecting wires? Constant Manganin Copper Nichrome Constant Manganin Copper Nichrome ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Three identical resistors are first connected in parallel and then in series. The resultant resistance of the first combination to the second will be 1/9 times 9 times 1/3 times 3 times 1/9 times 9 times 1/3 times 3 times ANSWER DOWNLOAD EXAMIANS APP
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