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Why are resistance connected in parallel...

Why are resistance connected in parallel?

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With the help of a diagram derive the formula for the equivalent resistance of three resistances connected in parallels?

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With the help of a labelled circuit diagram derive a formula to find combined resistance (R) when two or more resistance are connected in parallel taking symbol potential difference (V) and current (I)

Three identical cells of emf 4V each and unknown internal resistances are connected in parallel.The combination is connected to 10 ohm resistor. If terminal voltage across the cells is 2V, find internal resistance of each cell.

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MODERN PUBLICATION-ELECTRIC CURRENT. RESISTANCE AND E.M.F-EXERCISE
  1. A cell of e.m.f. E an internal resistance r is connected across an ext...

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  2. Obtain the condition fo rmaximum current through a resisitor, when a n...

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  3. Two cells of e.m.f E1 and E2 have internal resistance r1 and r2 respec...

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  4. n cells, each having emf. E and internal resistance r are connected in...

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  5. Show with the help of a diagram, how two cells may be connected in par...

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  6. Two identical cells, each of emf E, having negligible internal resista...

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  7. A number of identical cells, n , each of e.m.f. E, internal resistance...

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  8. Show that the resistance of a conductor is given by: R = (ml)/(n e^2 t...

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  9. State Ohm's law and derive it from the basic ideas of drift velocity o...

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  10. Resistance of a conductor depends on:

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  11. Explain the effect of temperature on the resistivity of pure semicondu...

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  12. What is the need of combining different resistors? What is the resulta...

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  13. With the help of a diagram derive the formula for the equivalent resis...

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  14. What is the need of combining different resistors? What is the resulta...

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  15. Why are resistance connected in parallel?

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  16. What is the difference between e.m.f. and potential diffrence?

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  17. Obtain the condition fo rmaximum current through a resisitor, when a n...

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  18. Obtain the condition for maximum current through a resistor, when a nu...

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  19. Memory cells are

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  20. Deduce the condition for obtaining maximum current through an external...

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