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What is LC oscillations ?...

What is LC oscillations ?

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What is meant by LC circuit? What are LC oscillations ?

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An LC circuit contains a 20 mH inductor and a 50 muF capacitor with an initial charge of 10 mC. The resistance of the circuit is negligible. Let the instant the circuit is closed be t = 0. (a) What is the total energy stored initially? Is it conserved during LC oscillations? (b) What is the natural frequency of the circuit? (c) At what time is the energy stored (i) completely electrical (i.e., stored in the capacitor)? (ii) completely magnetic (i.e., stored in the inductor)? (d) At what times is the total energy shared equally between the inductor and the capacitor? (e) If a resistor is inserted in the circuit, how much energy is eventually dissipated as heat?

What is LC circuit?

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KUMAR PRAKASHAN-ALTERNATING CURRENTS -SECTION-D MCQs (COMPETITIVE EXAMS)
  1. What is LC oscillations ?

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  2. Power factor of AC series circuit having resistance R and inductor L h...

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  3. A transformer has 140 turns in the primary and 280 turns in the second...

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  4. In an oscillating L-C circuit the maximum charge on the capacitor is Q...

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  5. Alternating current can not be measured by D.C. ammeter because ………

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  6. In a L-C-R circuit capacitance is changed from C to 2C. For the resona...

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  7. In a L-C-R series A.C. circuit, the voltage across each of the compone...

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  8. The power factor of A.C. circuit of resistance 12Omega and impedance ...

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  9. The phase difference between the alternating current and emf is pi/2 r...

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  10. In L-C-R series circuit at resonance p.d. between two ends of resistor...

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  11. In an A.C. generator, a coil with N turns, all the same area A and tot...

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  12. In A.C. circuit, when E = E0 sin omegat supply applied, current is obt...

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  13. An inductor (L = 0.03 H) and a resistor (R = 0.15 kOmega) are connecte...

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  14. An LCR circuit is equivalent to a damped pendulum. In an LCR circuit t...

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  15. An arc lamp requires a direct current of 10 A at 80 V to function. If ...

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  16. For an RLC circuit driven with voltage of amplitude vm and frequency ...

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  17. An emf of 20 V is applied at time t = 0 to a circuit containing in ser...

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  18. An inductor of inductance L and resistance R is connected of A.C. circ...

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  19. In an A.C circuit the current...

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  20. A primary of transformer has 100 turns an secondary has 500 turns. If ...

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  21. If in an A.C. circuit voltage V and current is then the power dissipat...

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