Current Electricity Two bulbs of 500 W and 200 W rated at 250 V will have resistance ratio as 2 : 5 5 : 2 25 : 4 4 : 25 2 : 5 5 : 2 25 : 4 4 : 25 ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a conductor varies inversely as Resistivity Length Are of cross-section Temperature Resistivity Length Are of cross-section Temperature ANSWER DOWNLOAD EXAMIANS APP
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 Positive None of the listed here Zero Negative Positive None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Current Electricity One Newton meter is same as One joule Five joules One joule second One watt One joule Five joules One joule second One watt ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Resistance of 220 V, 100 W lamp will be 4.84 Q 4840 Q 48.4 Q 484 ft 4.84 Q 4840 Q 48.4 Q 484 ft ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Electric current passing through the circuit produces Thermal effect Chemical effect Magnetic effect Luminous effect Thermal effect Chemical effect Magnetic effect Luminous effect ANSWER DOWNLOAD EXAMIANS APP
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