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The colour of the insulation of the ea...

The colour of the insulation of the earthing wire is……..

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What is the colour of insulation on the neutral wire coming from the electric board ?

A wire with…….insulation is used for earthing,.

A fuse wire is a/an……. .

Give importance of earthing in wiring.

Name the three types of wires used in household circuits with their respective colours of insulation are as follows : (1) Live (Positive) wire has red insulation . (2) Neutral (Negative) wire has black insulation cover. (3) Earth wire has insulation of green colour .

State whether the following statement are true or false : The wire with green insulation is usually the live wire of an electric a supply .

KUMAR PRAKASHAN-MAGNETIC EFFECTS OF ELECTRIC CURRENT -OBJECTIVE QUESTIONS AND ANSWERS ( FILL IN THE BLANKS :)
  1. The magnetic field is ………in the region where the magnetic field line...

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  2. …..had discovered the magnetic effect of electric current .

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  3. With the help of a………the presence of electric current can be known.

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  4. Electric moto converts ……..energy into ……..energy.

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  5. Resistance of a fuse wire is ……..and its melting points is ……….

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  6. The colour of the insulation of the earthing wire is……..

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  7. Magnetic field at the centre of a current - carrying cicular ring is...

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  8. In Fleming.s left - hand rule , the thumb denotes the direction of ……

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  9. The appliance with the help of which electricity can be generated i...

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  10. The induced electromotive force produced in a coil is proportional to...

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  11. Electromagnetic induction was discovered by ……… .

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  12. Magnitude of the current induced in a circular loop depends on the ...

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  13. The direction of DC remains constant in time .

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  14. Electromagnet consists of a current - carrying solenoid with Alnico ...

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  15. Overloading is caused by connecting too many appliances in a single ...

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  16. A stationary charge is surrounded by a magnetic field .

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  17. It is safe to touch a live wire .

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