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The internal resistance of a cell of emf...

The internal resistance of a cell of emf 2V is `0.1Omega`. It is connected to a resistance of `3.9 Omega`. The voltage across the cell is

A

0.5 V

B

1.9 V

C

1.95 V

D

2 V

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The correct Answer is:
A
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BINA LIBRARY-CURRENT ELECTRICITY-EXERCISE
  1. How many electrons constitute current of one ampere?

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  2. A car battery has emf 12V and internal resistance 5 x 10^-2 Omega. it ...

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  3. The internal resistance of a cell of emf 2V is 0.1Omega. It is connect...

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  4. The resistance in two gaps of a meter bridge are 10 Omega and 30 Omega...

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  5. What is a potentiometer? Why is it most accurate device in measuring e...

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  6. In a potentiometer experiment the balancing length with a cell is 560 ...

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  7. Two resistances are joined in parallel whose resultant is 6/5 ohms. On...

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  8. The smallest resistance obtained by connecting 50 resistance of 1/4 oh...

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  9. How many different combinations of three equal resistors can be made ?

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  10. A steady current flows in a metallic conductor of non uniform cross-se...

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  11. A metallic wire of resistance 40 Omega is stretched to twice its lengt...

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  12. A metallic wire is drawn to reduce its diameter to half its original v...

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  13. Three resistances each of 4 Omega are connected to form a triangle. Th...

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  14. Four wires of equal length and of resistance 10 Omega each are connect...

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  15. Assuming that the charge of an electron is 1.6 x 10^-19 C. The number ...

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  16. The electrical resistance of metals

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  17. The resistance of a conductor is 5 Omega at 50°C and 6 Omega at 100°C...

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  18. A piece of copper and another of germanium are cooled from room temera...

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  19. What is the order of the drift velocity of electrons?

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  20. A wire of 4 Omega resistance is bent at 180° at its mid point and twis...

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