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Explain the heating effect of electric c...

Explain the heating effect of electric current.

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

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Answer the following questions : State Joule's law about heating effect of electric current.

What is heating effect of an electric current?

True or false The production of heat in a wire when connected to electric circuit is called heating effect of an electric current.

What are the appliances that work on the principle of heating effect of electric current?

CHETANA PUBLICATION-ELECTRIC CURRENT THROUGH CONDUCTORS-EXERCISE
  1. Distinguish between ohmic substances and non-ohmic substances.

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  2. Define the expression for power. State its unit.

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  3. Explain the heating effect of electric current.

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  4. An electric heater takes 6A current from a 230V supply line, calculate...

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  5. The heating element connected to 230V draws a current of 5A. Determine...

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  6. What are resistors? State its types and uses.

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  7. Explain the colour code system for resistors.

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  8. Find the value of resistances for the following colour code. Blue Gr...

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  9. Find the value of resistances for the following colour code. Brown Bl...

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  10. Find the value of resistances for the following colour code. Red Red ...

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  11. Find the value of resistances for the following colour code. Orange W...

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  12. Find the value of resistances for the following colour code. Yellow V...

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  13. Find the colour code for the following value of resistor having tolera...

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  14. Find the colour code for the following value of resistor having tolera...

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  15. Find the colour code for the following value of resistor having tolera...

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  16. Find the colour code for the following value of resistor having tolera...

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  17. Find the colour code for the following value of resistor having tolera...

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  18. Write a note on rheostat.

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  19. Derive the expression for resistances connected in series.

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  20. Derive the expression for the resistances connected inparallel.

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