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 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 Length of heating element should be decreased Length of heating element has no effect on heating if water ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following quantities remain the same in all parts of a series circuit? Resistance Voltage Current Power Resistance Voltage Current Power ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Whether circuit may be AC. or D.C. one, following is most effective in reducing the magnitude of the current. Inductor Reactor Resistor Capacitor Inductor Reactor Resistor Capacitor ANSWER DOWNLOAD EXAMIANS APP
Current Electricity When current flows through heater coil it glows but supply wiring does not glow because Supply wiring is covered with insulation layer Supply wires are made of superior material Current through supply line flows at slower speed Resistance of heater coil is more than the supply wires Supply wiring is covered with insulation layer Supply wires are made of superior material Current through supply line flows at slower speed Resistance of heater coil is more than the supply wires ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following statement is true both for a series and a parallel D.C. circuit? Power are additive Currents are additive Voltages are additive Elements have individual currents Power are additive Currents are additive Voltages are additive Elements have individual currents 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 1/9 times 1/3 times 9 times 3 times 1/9 times 1/3 times 9 times 3 times ANSWER DOWNLOAD EXAMIANS APP
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