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संबंधित प्रश्न
Why is the series arrangement not used for domestic circuits?
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.
Find the equivalent resistance between points A and B
If the length of a wire is doubled by taking more of wire, what happens to its resistance?
Give one example to show how the resistance depends on the nature of material of the conductor.
Three resistors of 6.0 Ω, 2.0 Ω and 4.0 Ω are joined to an ammeter A and a cell of emf 6.0 V as shown in the following figure. Calculate :
- the effective resistance of the circuit.
- the reading of ammeter.
Choose the correct alternative and rewrite the following:
You are given three equal resistances. In how many combinations can they are arranged?
Two bulbs of 100 W and 40 W are connected in series. The current through the 100 W bulb is 1 A. The current through the 40 W bulb will be ______.
Write an expression for the resistance of a conducting wire in terms of its length and area of cross-section.
2Ω resistor A, 1Ω resistor B and 4Ω resistor C are connected in parallel. The combination is connected across a 2V battery of negligible resistance. Draw the diagram of the arrangement and calculate:
(i) The current in each resistor A and C,
(ii) The current through battery.
