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You are given several identical resistor...

You are given several identical resistors each of value `10Omega` and each capable of carrying a maximum current of 1 A. It is required to make a suitable combination of these to resistances to produce a resistance of `5Omega` which can carry a current of 4 A. The minimum number of resistors required for this job is

A

4

B

8

C

10

D

20

Text Solution

Verified by Experts

The correct Answer is:
B
First satisfy current requirement
.
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CP SINGH-CURRENT ELECTRICITY-Exercise
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  6. A cell drives a current through a circuit. The emf of the cell of equa...

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  7. Consider the following two statements: (A)Kirchhoff's junction law f...

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  8. Kirchoff's two law for electrical circuits are manifestations of the c...

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  9. the nonideal batteries are connected in series. Consider the following...

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  10. Two nonideal batteries are connected in parallel. Consider the followi...

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  11. The emf of a cell is epsilon and its internal resistance is r. its ter...

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  12. For a cell, a graph is plotted between the potential difference V acro...

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  13. A student measures the terminal potential difference (V) of a cell (of...

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  14. A galvanometer, together with an unknown resistance in series, is conn...

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  15. Two cells, having the same emf, are connected in series through an ext...

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  16. The n rows each containinig m cells in series are joined parallel. Max...

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  17. N identical cells, each emf E and internal resistance r are joined in ...

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  18. n identical cells, each of emf E and internal resistance r, are joined...

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  19. n identical cells, each of emf epsilon and internal resistance r, are ...

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  20. In the previous question, the potential difference across A is.

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