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What is electrical resistivity? What is ...

What is electrical resistivity? What is SI unit?

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The electrical resistivity of a material is the resistance offered by unit cube of that material betaween its opposite faces. Its SI unit is ohm-metre `(Omega-m)`.
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U-LIKE SERIES-ELECTRICITY -VERY SHORT ANSWER QUESTIONS
  1. Keeping the potential difference constant, the resistance of an electr...

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  2. The length of a wire is doubled and its cross sectional area is also d...

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  3. What is electrical resistivity? What is SI unit?

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  4. On what factors does the resistance of a conductor depend?

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  5. On what factors does the resistance of a conductor depend?

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  6. How are two resistors with resistances R1 Omega and R2 Omega are to be...

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  7. What potential difference is needed to send a current of 5A through th...

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  8. You have two metallic wires of resistances 6 Omega and 3 Omega. How wi...

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  9. What happens to the resistance of a conductor when the length of the c...

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  10. What happens to resistance of a conductor when its temperature is incr...

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  11. In which arrangement, series on parallel, are various electrical devic...

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  12. How does the resistance of a wire depend on its radius?

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  13. A given length of a wire is doubled on itself. By what factors does th...

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  14. What is the effective resistance in the given circuit?

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  15. Draw a schematic diagram of an electric circuit consisting of a batter...

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  16. Name a instrument /device used to measure electric current in a circui...

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  17. How is an ammeter connected in a circuit to measure current flowing th...

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  18. What is a voltmeter?

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  19. Name the instrument used to measure (i) electric current in a circuit,...

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  20. In a circuit if resistors of 5 Omega and 10 Omega are connected in ser...

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