Current Electricity The resistance of a conductor varies inversely as Length Temperature Resistivity Are of cross-section Length Temperature Resistivity Are of cross-section 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 Negative Zero Positive About 2 ohms per degree Negative Zero Positive About 2 ohms per degree ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A resistance having rating 10 ohms , 10 W is likely to be a Metallic resistor Wire wound resistor Carbon resistor Variable resistor Metallic resistor Wire wound resistor Carbon resistor Variable resistor ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Voltage dependent resistors are usually made from Nichrome Charcoal Graphite Silicon carbide Nichrome Charcoal Graphite Silicon carbide ANSWER DOWNLOAD EXAMIANS APP
Current Electricity An electrical lamp coonsumes 100 W of power. If the supply voltage is 220 V the energy consumed in 30 minutes is 5 kWh 0.05 kWh 0.005 kWh 5 kWh 5 kWh 0.05 kWh 0.005 kWh 5 kWh ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Two bulbs of 500 W and 200 W rated at 250 V will have resistance ratio as 5 : 2 2 : 5 4 : 25 25 : 4 5 : 2 2 : 5 4 : 25 25 : 4 ANSWER DOWNLOAD EXAMIANS APP
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