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Why do we use LED in the tester instead ...

Why do we use LED in the tester instead of a bulb ?

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VGS PUBLICATION-BRILLIANT-ELECTRICAL CONDUCTIVITY OF LIQUIDS-EXERCISE
  1. Conduct an experiment for testing the electric conductivity of electro...

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  2. Collect the information from various sources on the applications of el...

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  3. Why do we use LED in the tester instead of a bulb ?

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  4. Why do some materials allow electric current to pass through them and ...

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  5. If a battery is packed in a box and if only two wires from two termina...

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  6. What is electrolysis ? Give Faraday's first law of electrolysis.

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  7. Why are you advised not to touch electric appliances with wet hands?

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  8. Why do we use LED in the tester instead of a bulb ?

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  9. Why do we use LEDs as indicators in electrical appliances ?

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  10. What is meant by good conductors of electricity?

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  11. What is meant by bad conductors of electricity?

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  12. Why does not distilled water conduct electricity ?

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  13. Why is water used at our homes a good conductor of electricity?

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  14. What is electrolytic cell?

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  15. When we pass current through a copper sulphate solution having copper ...

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  16. If the key is to be coated with aluminium instead of copper, what chan...

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  17. A child staying in a coastal region tests the drinking water and also ...

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  18. Is it safe for electrician to carry out electrical repairs outdoor dur...

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  19. A tester is used to check conduction of electricity through two liquid...

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  20. When the free ends of a tester are dipped into a solution, the magneti...

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