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 Two bulbs of 500 W and 200 W rated at 250 V will have resistance ratio as 4 : 25 5 : 2 2 : 5 25 : 4 4 : 25 5 : 2 2 : 5 25 : 4 ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A light bulb draws 300 mA when the voltage across it is 240 V. The resistance of the light bulb is 800 Ω 400 Ω 600 Ω 1000 Ω 800 Ω 400 Ω 600 Ω 1000 Ω ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In a lamp load when more than one lamp are switched on the total resistance of the load None of these Increases Decreases Remains same None of these Increases Decreases Remains same ANSWER DOWNLOAD EXAMIANS APP
Current Electricity E. M. F. In a circuit Increases circuit resistance Maintains potential difference None of the listed here Decrease circuit resistance Increases circuit resistance Maintains potential difference None of the listed here Decrease circuit resistance ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes 1.0 ohm 0.4 ohm 0.6 ohm 0.8 ohm 1.0 ohm 0.4 ohm 0.6 ohm 0.8 ohm ANSWER DOWNLOAD EXAMIANS APP
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