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The resistance of an electrical applianc...

The resistance of an electrical appliance is `200 Omega` and it can withstand a maximum current of 0.1A.A dc source ,which can send 1A main current,is connected with this appliance,How much resistance should be connected In parallel with the appliance to run it with safety?

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The correct Answer is:
not more than `22.2 Omega`
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CHHAYA PUBLICATION-CURRENT ELECTRICITY -EXERCISE ( PROBLEM SET-I)
  1. With two resistances 2 Omega and 3 Omega In parallel a third resistanc...

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  2. Equivalent resistances of two resistors in their series and parallel c...

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  3. The equivalent resistances of two resistances in parallel combination ...

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  4. There are 14 resistances each of magnitude 1 Omega. Keeping three of t...

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  5. The resistance of an electrical appliance is 200 Omega and it can with...

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  6. The ratio of three resistances is 1:2:3 if the greatest resistance be ...

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  7. Emf of an electric cell is 2.1 V and its internal resistance is 0.1 Om...

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  8. Emf of an electric cell is 1.5 V and its internal resistance Is 2 Omeg...

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  9. A cell of emf 2.1 V and 0.1 Omega internal resistance sends 100 mA cur...

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  10. Electric current is sent through a resistance of 20 Omega from a batte...

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  11. Internal resistance of an electric cell is 1 Omega. Error is incurred ...

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  12. Current is sent from an electric cell of emf 30 V and of negligible in...

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  13. An electric cell of emf 2V and of negligible internal resistance is co...

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  14. Internal resistance of each of 30 identical cells is 3Omega. To get th...

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  15. Emf of each of 15 cells is 2V and internal resistance of each is 0.1 O...

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  16. 5 electric cells are connected in series .Emf of each cell is 1.5 V an...

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  17. When a resistance of 4.5 Omega is connected with 10 identical cells in...

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  18. Calculate the number of electrons crossing a given cross section in 1 ...

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  19. The number of free electrons per unit volume in a metallic conductor i...

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  20. Estimate the average drift speed of conduction electrons in a copper w...

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