Electric Circuits The ratio of the resistance of a 200 W, 230 V lamp to that of a 100 W, 115 V lamp will be 2. 4. 0.25. 0.5. 2. 4. 0.25. 0.5. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits For occurrence of resonance which of the following elements are required? Both 2 and 3 R C L Both 2 and 3 R C L ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Four bulbs of 40 W each are connected in series with a battery across them, which of the following statement is true? The current through each bulb is same. The power dissipation in each bulb is not same. The voltage across each bulb is not same. None of these The current through each bulb is same. The power dissipation in each bulb is not same. The voltage across each bulb is not same. None of these ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits An AC voltage of 200 V at 50 Hz is applied to a coil which draws 5 A and dissipates 1000 W. The resistance and impedance of the coil respectively are 25 Ω and 5 Ω. 40 Ω and 40 Ω. 40 Ω and 200 Ω. 50 Ω and 200 Ω. 25 Ω and 5 Ω. 40 Ω and 40 Ω. 40 Ω and 200 Ω. 50 Ω and 200 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In a 3 - φ delta connection, two-wattmeter method is used to measure the power; if the two watt meters read 28.13 kW and 13.31 kW, the power factor of connection will be 0.85. 0.4. 0.9. 0.6. 0.85. 0.4. 0.9. 0.6. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Two identical resistors are first connected in parallel then in series. The ratio of resultant resistance of the first combination to the second will be 0.25. 4. 2. 0.5. 0.25. 4. 2. 0.5. ANSWER DOWNLOAD EXAMIANS APP
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