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N cells each of e.m.f. E & internal resi...

N cells each of e.m.f. E & internal resistance r are grouped into sets of K cells connected in series. The (N/K) sets ae connected in parallel to a load of resistance R, then,

A

Maximum power is delivered to the load is `K=sqrt((NR)/r)`

B

Maximum power is delivered to the load if `K=sqrt((r)/(NR))`

C

Maximum power delivered to the load is `E^(2)/(4Nr)`

D

Maximum power deliverd to the load is `(N(E)^(2))/(4r)`

Text Solution

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The correct Answer is:
A, D
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RESONANCE-CURRENT ELECTRICITY-Exercise-2 (Part-3)
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  2. The current density in a wire is 10A//cm^(2) and the electric field in...

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  3. A bulb is conneted to an ideal battery of emf 10 V so that the resulti...

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  4. A cylindrical conductor has length l and area of cross section A. Its ...

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  5. N cells each of e.m.f. E & internal resistance r are grouped into sets...

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  6. In the circuit shown in fig. the cell has emf 10V and internal resista...

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  7. In the network shown in fig. , points A, B, and C are at potentials of...

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  8. In the circuit shown in figure

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  9. A battery of emf E and internal resistance r is connected across a res...

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  10. Potential difference across the terminal of a non ideal battery is

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  11. A cell of emf epsilon and internal resistance r drives a current i thr...

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  12. In the given figure, E=12V, R(1)=3Omega, R(2)=2Omega" and "r=1Omega. T...

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  13. In a potentiometer wire experiment the emf of a battery in the primary...

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  14. By mistake, a voltmeter is connected in series and an ammeter is conne...

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  15. A microameter has a resistance of 100 omega and a full scale range of ...

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  16. Two cells of unequal emfs epsi(1)" and "epsi(2), and internal resistan...

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  17. Three voltmeeters, all having different resistances, are joined as sho...

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  18. In the potentiometer arrangement shown, the driving cell D has emf eps...

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  19. Choose the correct alternatives

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  20. Which of the following statement/s is/are correct of a source of emf (...

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