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Distinguish between ohmic substances and...

Distinguish between ohmic substances and non-ohmic substances.

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CHETANA PUBLICATION-ELECTRIC CURRENT THROUGH CONDUCTORS-EXERCISE
  1. DC current flows in a metal piece of non-uniform cross-section. Which ...

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  2. Explain the limitations of Ohm's law.

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  3. Distinguish between ohmic substances and non-ohmic substances.

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

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  5. Explain the heating effect of electric current.

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

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

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

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  9. Explain the colour code system for resistors.

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

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

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

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

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

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

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

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  20. Write a note on rheostat.

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