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संबंधित प्रश्न
Complete the following :-
(a)
Write any two characteristics of a series combination of resistors.
Name the material which is used for making the heating element of an electric iron.
Write down an expression for the resistance of a metallic wire in terms of the resistivity.
How does the resistance of a wire change when:
its length is tripled?
Draw a V-I graph for a conductor at two different temperatures. What conclusion do you draw from your graph for the variation of resistance of conductor with temperature?
You have three resistors of values 2 `Omega`, 3 `Omega`, and 5 `Omega`. How will you join them so that the total resistance is less than 2 `Omega`?
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 ______.
Calculate the equivalent resistance between the points A and B for the following combination of resistors:
Show how you would connect three resistors, each of resistance 6 Ω, so that the combination has a resistance of 4 Ω.
