Current Electricity In which of the following substances the resistance decreases with increase in temperature? Constantan Copper Carbon Silver Constantan Copper Carbon Silver ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a conductor varies inversely as Length Are of cross-section Resistivity Temperature Length Are of cross-section Resistivity Temperature ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Two resistances Rl and Ri are connected in series across the voltage source where Rl > Ri. The largest drop will be across Either Rl or Ri Rl None of them Ri Either Rl or Ri Rl None of them Ri 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 6.4 A, 9.6 A 4.6 A, 9.6 A 6.4 A, 6.9 A 4.6 A, 6.9 A 6.4 A, 9.6 A 4.6 A, 9.6 A 6.4 A, 6.9 A ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A 40 W bulb is connected in series with a room heater. If now 40 W bulb is replaced by 100 W bulb, the heater output will Decreases Increases Remains same Heater will burn out Decreases Increases Remains same Heater will burn out ANSWER DOWNLOAD EXAMIANS APP
Current Electricity For testing appliances, the wattage of test lamp should be Low Very low High Any value Low Very low High Any value ANSWER DOWNLOAD EXAMIANS APP
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