Question 51 : Find the Q factor when the voltage across the capacitor is 1000V and the source voltage is 100V.
1. 10
2. 20
3. 30
4. 40
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Question 52 : What is the voltage across the capacitor when the source voltage is 100V and the Q factor is 10?
1. 100V
2. 10V
3. 1000V
4. 0V
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Question 53 : At resonance condition, the voltage across the capacitor and inductor is _________ the source voltage.
1. Greater than
2. Less than
3. Equal to
4. Much less than
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Question 54 : Quality factor is also known as _________
1. Voltage magnification
2. Current magnification
3. Resistance magnification
4. Impedance magnification
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Question 55 : What is the correct formula for quality factor?
1. Q=BW*fr
2. Q=BW/fr
3. Q=fr/BW
4. Q=fr2
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Question 56 : The current lags the supply voltage in a series RLC circuit has its frequency _________ the resonant frequency.
1. Above
2. Below
3. Equal to
4. Cannot be determined
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Question 57 : What is the power factor of a series RLC circuit under resonance condition?
1. 0
2. 1
3. Infinity
4. 100
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Question 58 : The current leads the supply voltage in a series RLC circuit has its frequency _________ the resonant frequency.
1. Above
2. Below
3. Equal to
4. Cannot be determined
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Question 59 : Resonance frequency occurs when __________________
1. X_L=X_C
2. X_L>X_C
3. X_L<X_C
4. Cannot be determined
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Question 60 : What happens to the quality factor when resonant frequency increases?
1. Increases
2. Decreases
3. Remains the same
4. Becomes zero
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