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The terminal voltage is (E)/(2) when a c...

The terminal voltage is `(E)/(2)` when a current of 2A is flowing through `2Omega` resistance, then the internal resistance of cell is:-

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Verified by Experts

The correct Answer is:
bob A does not rise

In this elastic collision velocity of masses are exchaged.
So `v_(A) = 0 rArr A` does not rise
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ALLEN -CURRENT ELECTRICITY-EXERCISE-IV A
  1. In the circuit element given here, if the potential at point B = V(B) ...

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  2. A copper wire has a square cross-section, 2.0 mm on a side. It carr...

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  3. The emf of a battery is 2V and its internal resistance is 0.5Omega the...

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  4. The potential difference across the 100 Omega resistance in the follow...

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  5. The equivalent resistance between the point P and Q in the network giv...

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  6. When connected across the terminals of a cell, a voltmeter measures 5 ...

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  7. Thirteen resistances each of resistance R ohm are connected in the cir...

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  8. A group of N cells whose emf varies directly with the internal resista...

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  9. A galvanometer has resistance 36Omega if a shunt of 4Omega is added wi...

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  10. If 10^(6) electrons/s are flowing through an area of cross section of ...

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  11. The terminal voltage is (E)/(2) when a current of 2A is flowing throug...

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  12. A 1Omega voltmeter has range 1V find the additional resistance which h...

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  13. The length of a given cylindrical wire is increased by 100%. Due to th...

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  14. The length of a wire of a potentiometer is 100 cm, and the e.m.f. of i...

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  15. S.I. unit of current is :-

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  16. In the shown arrangement of the experiment of the meter bridge if AC c...

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  17. The current in conductor varies with time t as I = 2 t + 3 t^(2) where...

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  18. The ammeter A reads 2A and the voltmeter V reads 20V, the value of res...

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  19. Resistance in the two gaps of a meter bridge are 10 ohm and 30 ohm res...

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  20. Two wires of resistance R(1) and R(2) have temperature coefficient of ...

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