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Metal castings of all electrical applian...

Metal castings of all electrical appliances must be earthed.

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TARGET PUBLICATION-EFFECTS OF ELECTRIC CURRENT -True or False.
  1. The unit of electrical power is watt.

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  2. The electric bulb consists of the filament whose melting point is low.

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  3. Resistivity of pure metals is more than alloys.

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  4. Short circuit occurs, when more appliances work together in a circuit.

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  5. During a short circuit, small amount of current flows through it.

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  6. Electric current, if very weak, does not produce magnetic field.

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  7. Moving charges in a magnetic field would experience a force.

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  8. Most of the power stations produce direct current.

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  9. The working of an electric generator is based on the heating effect of...

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  10. Heat produced in an electric circuit depends upon the potential differ...

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  11. The unit of electrical power is watt.

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  12. The electric bulb consists of the filament whose melting point is low.

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  13. Resistivity of pure metals is more than alloys.

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  14. Metal castings of all electrical appliances must be earthed.

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  15. Short circuit occurs, when more appliances work together in a circuit.

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  16. During a short circuit, small amount of current flows through it.

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  17. Electric current, if very weak, does not produce magnetic field.

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  18. If the direction of electric current is reversed, then the direction o...

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  19. Most of the power stations produce direct current.

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  20. The working of an electric generator is based on the heating effect of...

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