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lnternal resistance of a battery of 2V t...

lnternal resistance of a battery of 2V terminal voltage is 0.2`Omega` and currrent flowing through is 0.5 A . So emf of battery will be ..... .

A

1.9 V

B

1.0 V

C

2.1 V

D

3 V

Text Solution

Verified by Experts

The correct Answer is:
C
2.1 V
`epsilon = V + Ir = 2 + 0.5 xx 0.2 = 2.1 ` V
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KUMAR PRAKASHAN-CURRENT ELECTRICITY-SECTION [D] MULTIPLE CHOICE QUESTIONS (MCQs) (MCQs FROM .DARPAN. BASED ON TEXTBOOK)
  1. Terminal voltage of battery of 1.25 V and emf of battery" 1.5V , so i...

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  2. Internal resistance of cell having emf 24 V is 0.12 Omega. If cell is ...

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  3. lnternal resistance of a battery of 2V terminal voltage is 0.2Omega an...

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  4. A 10 Omega resistance is connected with an electric cell. Now this re...

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  5. The potential difference between the terminals or a battery is 10 V an...

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  6. The cell is said to be in open circuit condition

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  7. If the current in an electric bulb increases by 1 %, what will be the ...

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  8. Total power consumed when two resistors of resistance R are connected ...

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  9. Three equal resistors connected across, a source of emf together dissi...

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  10. Temperature of a conductor increases by 5^(@)C passing electric curren...

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  11. Heat produced in a resistance wire of resistance R on passing current ...

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  12. n identical bulbs operating on same voltage are available. When all su...

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  13. Maximum power in a 0.5Omega resistance connected with two batteries of...

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  14. An electric bulb marked 40 W and 200 V is used in a circuit of supply ...

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  15. What is the ratio of power consumed in resistances R(1) and R(2) as sh...

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  16. Three cells of emf 1.5 V and internal resislance 1 Omega are connected...

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  17. n resistors each of resistance r are connected to a battery of emf eps...

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  18. n identical cells each of emf epsilon and lnternal resistance r are co...

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  19. Two bulbs of 220 V and 100 W are firs connected in series and then in ...

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  20. The resistance of a 10 m long potentiometer wire is 20 Omega . It is c...

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