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12 cells of each e.m.f 2V are connected ...

12 cells of each e.m.f 2V are connected in series among them, if 3 cells are connected wrongly. Then the effective e.m.f. of the combination is 

A

18 V

B

12 V

C

24 V

D

6 V

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-CURRENT ELECTRICITY-EXERCISE - II
  1. Four cells each of emf 2V and internal resistance 1 ohm are connected ...

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

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  3. 12 cells of each e.m.f 2V are connected in series among them, if 3 cel...

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  4. Two cells of emf 1.25V, 0.75V and each of internal resistance 1 ohms a...

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  5. If the identical cells each having an emf of 20 V are connected in Par...

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  6. When a battery connected across a resistor of 16Omega , the voltage ac...

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  7. The cells of emf's E(1) and E(2) be connector in parallel in a circuit...

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  8. A storage battery of emf 0.8 V and internal resistance 0.5 Omega is be...

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  9. A battery is charged at a potential of 15 V for 8 hours when the curre...

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  10. The value of current I, in the figure shown will be

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  11. Find E for the given loop

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  12. The potential difference between points A and B is

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  13. The electric current 'i' in the given circuit is

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  14. Resistances P,Q,R,S of values 2,3,2,4 form a wheat stone bridge the re...

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  15. Four resistors A, and D form a Wheatstone bridge. The bridge is bala...

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  16. In the circuit shown in the figure, the value of Resistance X, when po...

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  17. In the circuit shown, if a conducting wire is connected between points...

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  18. The resistances of the four arms P,Q,R and S in a Wheatstone's bridge ...

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  19. The balancing point in a meter bridge is 44 cm. If the resistances in ...

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  20. A 6Omega resistance is connected in the left gap of a meter bridge. In...

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