Advertisements
Advertisements
Question
State three factors on which the resistance of a wire depends. Explain how the resistance depends on the factors stated by you.
Short Note
Solution
Resistance of a wire depends upon:
(i) Length of wire: Resistance is directly proportional to the length of a wire.
(ii) Area of cross-section of wire: Resistance is inversely proportional to the area of cross-section the wire.
(iii) The temperature of wire: Resistance of a wire is directly proportional to the temperature of the wire.
shaalaa.com
Types of Circuits: Simple Circuit
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
'The resistance of a wire is 1 ohm'. Explain the meaning of this statement.
What do you understand by the term electric current?
Name the scientist who first assigned algebraic signs to charges.
What type of charge is produced on an ebonite rod when it is rubbed with a cat's fur?
State two differences between charge and mass.
Consider three charged bodies A, B, and C. If A and B repel each other and A attracts C, what is the nature of force between B and C?
Draw a labeled diagram of a gold-leaf electroscope.
The lighting and the thunder are produced simultaneously, but the sound of the thunder is heard a few seconds after the lightning is seen. Why?
What is the other name of a variable resistor?
Is voltmeter same as voltameter?
