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Self-inductance and resistance of a coil...

Self-inductance and resistance of a coil are 30mH and `20Omega` respectively. It is connected to a `30Omega` resistance and a 2V battery in series. How much energy will be stored in the coil?

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`2.4xx10^(-5)J`
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CHHAYA PUBLICATION-ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT-PROBLEM SET - I
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  2. A rectangular coil of area 0.2 m^(2) is held in a magnetic field of st...

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  3. A magnet is being brought near a circular coil, of radius 10 cm, havin...

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  4. A conducting wire of length 30 cm revolves 1000 times per minute about...

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  5. A 10m long horizontal wire, lying along the magnetic east-west directi...

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  6. The distance between the extremities of the two wings of an aeroplane ...

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  7. A coil of 100 turns and of diameter 0.2 m is placed at right angles to...

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  8. A wire xy has a semicircular part of radius a. Obtain the expression f...

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  9. A closed circular coil having a diameter of 50 cm and of 200 turns, wi...

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  10. The current in a primary coil increases by 20 A in 0.1 s. If the avera...

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  11. The inductance of a coil of 400 turns is 8 mH. If a current of 5 mA fl...

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  12. Find the amount of stored energy within a coil of inductance 10mH due ...

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  13. The ratio of the inductances of two coils is 1 : 2 and that of the cur...

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  14. Self-inductance and resistance of a coil are 30mH and 20Omega respecti...

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  15. The current in a coil increases by 10 A in 0.01s. If the average emf i...

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  16. An emf of 100V is induced in a coil when the current through it change...

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  17. The self-inductance of a circular coil of 600 turns is 36 mH. What wil...

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  18. A straight solenoid of length 50 cm and across sectional area 1cm^(2) ...

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  19. A solenoidal coil has 50 turns per centimeter along its length and a c...

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