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An L-R combination is connected to an id...

An L-R combination is connected to an ideal battery. If `L = 20 mH, R = 100 Omega` and `epsilon = 10V`, find (i) the time constant (ii) the maximum current and (iii) the time elapsed before the current reaches 90% of the maximum value.

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The correct Answer is:
(i) 0.20 ms, (ii) 0.10A, (iii) 0.92ms
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SL ARORA-TRANSIENT CURRENT-Problems For Self Practice
  1. Show that the time for attaining half the value of the final steady cu...

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  2. A coil of inductance 10H and resistance 15Omega is connected to a supp...

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  3. A potential difference of 4V is applied to a coil of resistance 8Omega...

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  4. A coil of resistance 11Omega and inductance 0.1H is connected to a 110...

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  5. An L-R combination is connected to an ideal battery. If L = 20 mH, R =...

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  6. In an LR-circuit the current attains one-third of its final steady val...

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  7. A inductor of 20mH inductance and a resistor of 100 Omega resistance a...

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  8. A solenoid having a resistance of 5Omega and self-inductance of 4H is ...

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  9. A coil of reistance 5Omega and inductance 1H is connected to a battery...

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  10. A capacitor of 10muF is connected with a resistance of 2.2 M Omega. Wh...

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  11. A capacitor of 1.443 muF capacitance after being charged is shunted by...

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  12. A capacitor is being charged from dc source through a resistance of 5M...

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  13. A capacitr is charged from a dc source through a resistance of 3MOmega...

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  14. A resistor R and 2muF capacitor in series are connected to a 220V dc s...

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  15. A 0.18 mu F capacitor is first charged and then discharged through a h...

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  16. A capacitor charged to 10 V is being discharged through a resistance R...

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  17. A mass of gas exerts a pressure of 72 cm of Hg at 27^(@)C. It is heate...

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