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The effective resistance in series combi...

The effective resistance in series combination of two equal resistance is 's'. When they are joined in parallel the total resistance is p. If s = np then the minimum possible value of 'n' is

A

4

B

1

C

2

D

3

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The correct Answer is:
A
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AAKASH SERIES-CURRENT ELECTRICITY-EXERCISE - II
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  7. Two metal wires of identical dimensions are connected in series. If si...

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  11. Which of the four resistances P,Q,R and S generate the greatest amount...

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  12. What is the ratio of heat generated in R and 2R

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  15. The intemal resistance of a 2.1 V cell which gives a current of 0.2 A ...

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  16. The emf of a daniel cell is 1.08V. When the terminals of the cell are ...

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  17. A primary cell has an e.m.f, of 1.5 V, when short circuited it gives a...

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  18. If the external resistance is equal to the internal resistance of a ce...

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  19. Four cells each of emf 2V and internal resistance 1 ohm are connected ...

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  20. A student is asked to connected four cells of e.m.f of 1 V and interna...

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