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An electrical bulb rated 220 V is connec...

An electrical bulb rated 220 V is connected to 220v, 5Hz AC source. The bulb

A

does not glow

B

glows intermittently

C

glows continously

D

gets fused

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MODERN PUBLICATION-MAGNETIC EFFECTS OF ELECTRIC CURRENT-EXERCISE
  1. An induced emf is produced when a magnet is plunged into a coil. The m...

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  2. The frequency of AC means in India is

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  3. An electrical bulb rated 220 V is connected to 220v, 5Hz AC source. Th...

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  4. When a charged particle moves perpendicular to a magnetic field, then

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  5. A straight wire of mass 200 g and length 1.5 m carries a current of 2 ...

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  6. The magnetic field at a distance r from a long wire carryimg current I...

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  7. A long solenoid carrying a current produces a magnetic field B along i...

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  8. The device used for producing electric current is

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  9. At the time of short circuit,the current in the circuit.

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  10. State whether the following statements are true or false: An electric ...

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  11. True or false A constant magnetic flux in a coil can induce current in...

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  12. True or false AC is more dangerous as compared to DC.

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  13. True or false AC is the best suitable for electroplating.

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  14. True or false The function of a fuse wire depends on its length.

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  15. Fill ups Electromagnetic induction is the phenomenon of converting…………...

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  16. Fill ups Fleming's left hand rule enables us to find the direction of ...

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  17. Fill ups ……………..cannot be used for electroplating.

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  18. Fill ups Live wire has …………….coloured insulation.

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  19. Fill ups Short circuiting occurs when live and………………wires come in cont...

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  20. When does an electric short circuit occur?

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