| 1. | What will be the produced mml (in Amp-turns) in a coil, if the coil has 160 turns and carries a current of 0.15 A ? | |
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32
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24
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16
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8
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Report Question| 2. | Determine the reluctance (in Amp-turns/Wb) of a coil, when the flux through the coil is 25 Wb and the value of produced mml is 50 Amp-turns ? | |
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2
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6
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8
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5
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| 3. | Determine the magnetic field intensity (in Amp-turns/m) of 5 metre long coil when the coil has 100 turns and carries a current of 0.6 A ? | |
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15
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12
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10
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8
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| 4. | Determine the self-inductance (in mH) of a 3 m long air-cored solenoid, when the coil has 300 turns and the diameter of the coil 12 cm ? | |
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0.41
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0.35
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0.32
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0.24
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| 5. | Determine the current (in A) through a 60 cm long solenoid when the solenoid has 400 turns and the value of magnetic field at the centre of the solenoid is 6 mT ? | |
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4.41
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5.6
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7.2
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8.4
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| 6. | Determine the time-period (in ms) of a sinusoidal wave when the frequency of the wave is 60 Hz. ? | |
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16.67
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18.26
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20.24
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26
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| 7. | Which of the following is the unit of frequency of an AC signal ? | |
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Hertz/Second
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Revolution
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Hertz
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Revolution/second
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| 8. | Determine the average value of alternating voltage (in V} when the peak value of the voltage is 120 V. ? | |
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76.44
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86.34
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110.34
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188.38
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| 9. | What will be the capacitance (in mF) of a circuit when the circuit is supplied with a 50 Hz frequency and the capacitive reactance of the circuit is 40 ohms ? | |
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0.4
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0.8
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1.4
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2.6
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| 10. | Determine the total power (in kW) consumed by a 3-phase delta connected system supplied by a line voltage of 240 V when the value of phase current is 20 A and the current lags the voltage by 60 degree ? | |
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9.4
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8.6
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8.2
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7.2
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