Current Electricity In an electric kettle water boils in 10 m minutes. It is required to boil the boiler in 15 minutes, using same supply mains Length of heating element should be decreased Length of heating element has no effect on heating if water Length of heating element should be increased None of these Length of heating element should be decreased Length of heating element has no effect on heating if water Length of heating element should be increased None of these 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 About 2 ohms per degree Positive Negative Zero About 2 ohms per degree Positive ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In a lamp load when more than one lamp are switched on the total resistance of the load Increases Remains same None of these Decreases Increases Remains same None of these Decreases ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Electrical current is due to the flow of Positive charges only Both positive and negative charges Neutral particles only Negative charges only Positive charges only Both positive and negative charges Neutral particles only Negative charges only ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A wire having very high value of conductance is said to be Very good conductor None of the listed here Insulator Moderately good conductor Very good conductor None of the listed here Insulator Moderately good conductor ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A current of 16 amperes divides between two branches in parallel of resistances 8 ohms and 12 ohms respectively. The current in each branch is 4.6 A, 6.9 A 4.6 A, 9.6 A 6.4 A, 6.9 A 6.4 A, 9.6 A 4.6 A, 6.9 A 4.6 A, 9.6 A 6.4 A, 6.9 A 6.4 A, 9.6 A ANSWER DOWNLOAD EXAMIANS APP
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