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Define Resistance. Give its S.I. unit....

Define Resistance. Give its S.I. unit.

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ICSE-CURRENT ELECTRICITY-EXERCISE-8(A)
  1. State whether the current is a scalar or vector ? What does the direct...

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  2. State whether the potential is a scalar or vector ? What does the posi...

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  3. Define Resistance. Give its S.I. unit.

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  4. Which particles are responsible for current in conductors?

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  5. Explain the flow of current in a metallic wire on the basis of movemen...

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  6. What is the cause of resistance offered by the metallic wire in the fl...

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  7. State Ohm's law and draw a neat labelled circuit diagram containing a ...

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  8. Name and state the law which relates the potential difference and curr...

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  9. Part (a): name and state the law which relates the potential differenc...

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  10. The relationship between the potential difference and the current in a...

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  11. Draw an 1-V graph for a linear resistor. What does its slope represent...

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  12. What is an ohmic resistor ? Give one example of an ohmic resistor. Dra...

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  13. What is an ohmic resistor ? Give one example of an ohmic resistor. Dra...

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  14. Give two differences between an ohmic and non ohmic resistor.

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  15. Fig. shows I-V curves for two resistors. Identify the ohmic and non-oh...

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  16. Draw a V-I graph for a conductor at two different temperatures. What c...

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  17. How does the resistance of a wire depend on its radius? Explain your a...

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  18. Two copper wires are of the same length, but one is thicker than the o...

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  19. How does the resistance of a wire depend on its length ? Give a reason...

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  20. How does the resistivity of a consuctor depend upon temperature and el...

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