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Five identical resistors each of resista...

Five identical resistors each of resistance `1Omega` are initially arranged as shown in the figure by clear lines. If two resistances are added as shown by the dashed lines then change in resistance in final and initial arrangement is

A

`2Omega`

B

`1Omega`

C

`3Omega`

D

`4Omega`

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The correct Answer is:
A
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RESONANCE ENGLISH-CURRENT ELECTRICITY-Exercise-1 (Part-2)
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  7. Three equal resistances, each of ROmega are connected as shown in figu...

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  8. A wire of resistance 0.1 cm^(-1) bent to form a square ABCD of side 10...

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  9. In the circuit shown in Fig. 7.39, the heat produced in the 5 Omega re...

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  10. A 50 W bulb is in series with a room heater and the combination is con...

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  11. The equivalent resistance between the points A and B is

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  12. A battery of internal resistance 4 Omega is connected to he network of...

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  13. In these circuits all the batteries are indentical and have negllgible...

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

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  15. Twelve cells each having the same emf are connected in series and are ...

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  16. Two cells of e.m.f. 10V & 15V are connected in parallel to each other ...

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  17. N sources of current with different emf's are connected as shown in Fi...

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  18. The reading of voltmeter is

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  19. The length of a wire of a potentiometer is 100 cm, and the emf of its ...

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  20. The current through the ammeter shown in figure is 1 A. If each of the...

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