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A primary cell has an e.m.f, of 1.5 V, w...

A primary cell has an e.m.f, of 1.5 V, when short circuited it gives a current of 3A, then the internal resistance of the cell is 

A

`4.5Omega`

B

`2Omega`

C

`0.5Omega`

D

`2/5Omega`

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH SERIES-CURRENT ELECTRICITY-EXERCISE - II
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  2. The emf of a daniel cell is 1.08V. When the terminals of the cell are ...

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

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

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

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

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  7. 12 cells of each e.m.f 2V are connected in series among them, if 3 cel...

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

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

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

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

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

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

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

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  15. Find E for the given loop

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  16. The potential difference between points A and B is

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

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

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

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

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