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A potentiometer circuit is setup as show...

A potentiometer circuit is setup as shown. The potential gradient across the potentiometer wire is `k "volt"//cm` and the ammeter present in the circuit reads. `1.0 A` When two-way key is switched off. The balance point, when the key between the terminals (i) 1 and 2 (ii) 1 and 3, is plugged in, are found to be at lengths `l_(2) cm` and `l_(2) cm` respectively. The magnitudes, of the resistors `R` and `X`, in ohm, are then, equal, respectively, to

A

k(i2-i1) and kl2

B

kl1 and k(l2 -l1)

C

k(l2-l1) and kl1

D

kl2 and kl1

Text Solution

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The correct Answer is:
D
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ALLEN -CURRENT ELECTRICITY-EXERCISE-V B
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  10. A potentiometer circuit is setup as shown. The potential gradient acro...

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  11. A galvanometer has a coil of resistance 100 Omega and gives a full-sc...

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  12. A galvanometer has resistance 48Omega if a shunt of 6Omega is added wi...

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  18. A galvanometer of resistance G is shunted by a resistance S ohm. To...

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