Question 1 |
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What is the reason for balancing the load across the three phases |
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In an RL Parallel circuit what is the lagging component |
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What can be done to improve the power factor of an industrial installation |
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If the true power is 3kW and the power factor is 0.86 what is the apparent power. |
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If R=7 ohms and Xc=8 ohms what is the phase angle |
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If the phase angle is 23.185 degrees what is the power factor |
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What is the Ohmic value (or capacitive reactance) of a 30 micro Farad Capacitor |
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If the apparent power is 50 kVA and the phase angle is 30 degrees what is the value of the reactive component |
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In a star connected system what is the relationship between Line Current and Phase Current |
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If the true power was 500 watts and the apparent power was 707.106 VA what would the phase angle be |
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In an RLC Parallel circuit which quantitiy remains constant |
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In an RL Series circuit what is the lagging component |
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Feedback: In an RL Series circuit what is the lagging component
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If R=7 and Z=11 what is the power factor |
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0 of 1 points |
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What does the ratio W/VA produce: |
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What is the purpose of the capacitor across the terminals of a fluorescent fitting used for: |
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If the true power was 500 watts and the apparent power was 707.106 VA what would the power factor be |
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When W=VA what is the p.f |
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An RL circuit connected to a 50Hz supply consists of a 5 ohm resistor in series with an inductor of 7.29mH. What size capacitor would you need to connect across the supply to correct the phase shift |
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On a power triangle what does the hypotenuse represent: |
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By how many degrees are the three phases separated |
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What is the relationship between the power dissipated in a star connected system to that of a delta connected system |
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In a delta connected system what is the relationship between Line Current and Phase Current |
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What is the Ohmic value (or inductive reactance) of a 30 milli Henry (30mH) inductor |
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When R=Z what is the p.f |
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On an impedance triangle what does the hypotenuse represent: |
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If R=7 and Z=12 what is the phase angle |
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What does the ratio of R/Z produce: |
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An RL circuit connected to a 50Hz supply consists of a 5 ohm resistor in series with an inductor of 7.29mH. What is the Ohmic value of the inductor, The power factor and the phase angle |
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In a series RL circuit the value of R is 4 ohms and the phase angle is 30 degrees what is the value of the inductor |
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In an RLC Series circuit which quantity remains constant |
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