Current Electricity Which of the following is the best conductor of electricity? Silver Copper Zinc Gold Silver Copper Zinc Gold ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Three resistance of 10 ohms, 15 ohms, and 30 ohm are connected in parallel. The total resistance of the combination is 55 ohms 15 ohms 5 ohms 10 ohms 55 ohms 15 ohms 5 ohms 10 ohms 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 2 : 5 5 : 2 4 : 25 25 : 4 2 : 5 5 : 2 4 : 25 ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Specific resistance of a substance is measured in Ω-m None of the listed here m/Ω Ω/m Ω-m None of the listed here m/Ω Ω/m ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The hot resistance of the bulb's filament is higher than its cold resistance because the temperature coefficient of the filament is About 2 ohms per degree Zero Positive Negative About 2 ohms per degree Zero Positive Negative 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 1/3 times 9 times 1/9 times 3 times 1/3 times 9 times 1/9 times 3 times ANSWER DOWNLOAD EXAMIANS APP
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