| 1. | Capacitive susceptance is a measure of ? | |
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reactive power in a circuit
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the extent of neutralisation of reactive power in a circuit
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a purely capacitive circuit's ability to pass current
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a purely capacitive circuit's ability to resist the flow of current
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Report Question| 2. | A resonance curve for a series circuit is a plot of frequency versus ? | |
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current
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voltage
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impedance
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reactance
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| 3. | Which of the following is not a non-linear element ? | |
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Transistor
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Heater coil
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Diode
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Electric arc with unlike electrodes
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| 4. | A parallel A.C. circuit in resonance will ? | |
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have a high voltage developed across each inductive and capacitive section
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have a high impedance
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act like a resistor of low value
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have current in each section equal to the line current
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| 5. | In an A.C. circuit, a low value of kVAR compared with kW indicates ? | |
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low efficiency
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high power factor
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unity power factor
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maximum load current
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| 6. | Time constant of an inductive circuit ? | |
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increases with increase of inductance and decrease of resistance
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increases with the increase of inductance and the increase of resistance
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increases with decrease of inductance and decrease of resistance
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increases with decrease of inductance and increase of resistance
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| 7. | In a pure inductive circuit if the supply frequency is reduced to 1/2, the current will ? | |
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be reduced by half
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be doubled
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be four times as high
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be reduced to one fourth
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| 8. | The series and parallel resonance on L-C circuit differs in that ? | |
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series resistance needs a low-resistance source for sharp rise in current
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series resonance needs a high-resistance source for sharp increase in current
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parallel resonance needs a low resistance source for a sharp increase in impedance
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parallel resonance needs a low resistance source for a sharp rise in line current
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| 9. | Inductance of coil ? | |
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is unaffected by the supply frequency
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decreases with the increase m supply frequency
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increases with the increase in supply frequency
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becomes zero with the increase in supp]y frequency
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| 10. | Pure inductive circuit ? | |
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consumes some power on average
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does not take power at all from a line
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takes power from the line during some part of the cycle and then returns back to it during other part of the cycle
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none of the above
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