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Two wires of the same material and same ...

Two wires of the same material and same length have radii 1 mm and 2 mm respectively. Compare :
their resistances,

A

`5V `

B

`13.5 V`

C

`27 V`

D

`10 V`

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-APPENDICES ( REVISION EXERCISE )-REVISION EXERCISE (CUTTENT ELECTRICITY )
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  3. Two wires of the same material and same length have radii 1 mm and 2 m...

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  4. Calculate the effective resistance between the points A and B in the c...

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  5. The current i drawn from the 5 V source will be

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  6. The variation of current and voltage in a conductor has been shown in ...

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  7. Two resistances of 400 Omega and 800 Omega are connected in series wit...

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  8. In the following circuit, determine the reading of ideal voltmeter (V)...

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  9. In an electric circuit shown alongside, find current in resistor ...

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  10. In the given circuit, value of Y is:

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  11. In the circuit shown in figure, the potentials of B, C and D are:

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  12. The specific resistance of the material of a wire is 'rho' and its vol...

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  13. A hollow cylinder (rho=2.2xx10^(-8)Omega-m) of length 3 m has inner an...

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  14. A rectangular block has dimensions 5 cm xx 5 cm xx 10 cm . Calculate...

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  15. The wires of same dimension but resistivities rho(1) and rho(2) are co...

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  16. Two wires of the same dimensions but resistivities p(1) and p(2) are c...

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  17. Two rods are joined end to end. Both have a cross - sectional ar...

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  18. Resistance of a wire is 8 Omega . It is drawn in such away that it exp...

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  19. Find the value of colour coded resistance shown is fig

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  20. The colour coded resistance of corbon resistance is (Initial three ban...

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