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प्रश्न
State expression for Cells connected in parallel.
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उत्तर
I = `"nE"/"nR + r"` cells in parallel.
संबंधित प्रश्न
Find the expression for the resistors connected in series and write the two characteristics of it. (Draw figure).
The V-I graph for a series combination and for a parallel combination of two resistors is shown in the figure below. Which of the two A or B. represents the parallel combination? Give reasons for your answer.
When a 4 Ω resistor is connected across the terminals of a 12 V battery, the number of coulombs passing through the resistor per second is:
(a) 0.3
(b) 3
(c) 4
(d) 12
Give the law of combination of resistances in series.
Name the material of wire used for making standard resistances. Give a reason.
Define the term resistivity and state its S.I. unit. Which will have higher resistivity a conductor or an insulator.
Two resistors of 4Ω and 6Ω are connected in parallel to a cell to draw 0.5 A current from the cell. Calculate the current in each resistor.
With the help of a circuit diagram derive the formula for the resultant resistance of three resistances connected:
- in series and
- in parallel
Show how you would connect three resistors, each of resistance 6 Ω, so that the combination has a resistance of 4 Ω.
