Advertisements
Advertisements
Question
Advertisements
Solution
APPEARS IN
RELATED QUESTIONS
Name the material which is the best conductor of electricity.
Give one example to show how the resistance depends on the nature of material of the conductor.
How will you oonnect five resistors, each of the value one ohm, to obtain an equivalent resistance of 0.2 `Omega`
Choose the correct alternative and rewrite the following:
You are given three equal resistances. In how many combinations can they are arranged?
Answer the following question.
While studying the dependence of potential difference ( V) across a resistor on the current (I) passing through it, in order to determine the resistance of the resistor, a student took 5 readings for different values of current and plotted a graph between V and t. He got a straight line graph passing through the origin. What does the straight-line signify? Write the method of determining the resistance of the resister using this graph.
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.
What is a resistance? Define it with respect to Ohm’s law,
