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A heater boils certain amount of water i...

A heater boils certain amount of water in 15 minutes. Another heater boils same amount of water in 10 minutes. Time taken to boil same amount of water when both are used in parallel is

A

25 minute

B

6 minute

C

12 minute

D

12.5 minute

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AAKASH INSTITUTE ENGLISH-CURRENT ELECTRICITY-ASSIGNMENT(SECTION-A(OBJECTIVE TYPE QUESTIONS))
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  2. A battery delivers equal power individually across 4 Omega and 16 Ome...

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  3. A heater boils certain amount of water in 15 minutes. Another heater b...

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  4. Minimum resistance obtained from two resistors 3Omega and 2 Omega is

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  5. Effective resistance across AB in the network shown in

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  6. A uniform wire os resistance 12 Omega is bent to form a circle. Effec...

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  7. A wire of resistance R is cut into ‘ n ’ equal parts. These parts are ...

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  8. Potential difference across AB in the circuit as shown in figure.

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  9. Potential difference across AB in the network shown is

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  10. emf of a chemical cell depends on

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  11. When current supplied by a cell to a circuit is 0.3 A, its terminal po...

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  12. Potential difference across AB in the networ shown is

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  13. Find the current through the 10(Omega)resistor shown in figure.

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  14. Three identical cells are connected in parallel across AB. Net acr...

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  15. Five cells each of emf E and internal resistance r are connecte in se...

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  16. Potentail difference V(A) - V(B) in the network shown in

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  17. Potential difference across AB , i.e., V(A)-V(B) is

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  18. Potential difference V(B)-V(A) in the network shown is

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  19. Current l in the network shown in figure is

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  20. Value of the resistance R in the figure is

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