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PUNJAB BOARD PREVIOUS YEAR PAPERS-ALTERNATING CURRENTS-EXERSICE
- A 230 V variable frequency source is connected across a series combina...
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- A 230 V variable frequency source is connected across a series combina...
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- A 230 V variable frequency source is connected across a series combina...
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- A series circuit with L = 0.12H, C = 0.48 mF and R = 25 ohm, is connec...
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- A capacitor of unknown value and an inductor of 0.1H and a resistor of...
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- A 60muF capacitor, a 0.3H inductor and a 50Omega resistor are connecte...
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- A series LCR circuit with R = 20Omega (Ohm), L = 1,5H (Henry) and C= 3...
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- What is the relation between peak value and root mean square value of ...
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- What is the phase relationship between current and voltage in an induc...
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- What do you mean by power factor of an a.c. circuit ?
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- Define inductive reactance of an inductor.
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- What is Wattless current ?
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- Define capacitive reactance of a capacitor.
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- What is an idle current ?
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- Define impedance of an a.c. circuit.
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- What is the impedance of a circuit ?
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- What is impedance of circuit at resonance ?
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- For a circuit at resonance, voltage applied is E = E@ sin wt and curre...
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- For a circuit at resonance, voltage applied is E = E@ sin wt and curre...
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- Define resonant frequency of LCR series circuit.
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