Advertisements
Advertisements
प्रश्न
How does specific resistance of a semi-conductor change with the increase in temperature?
उत्तर
The specific resistance of a semiconductor decreases with an increase in temperature.
APPEARS IN
संबंधित प्रश्न
What is the S.I unit of electrical conductivity?
Distinguish between the resistivity and conductivity of a conductor.
Electrical resistivity of a given metallic wire depends upon:
A wire of length (l), made of material resistivity ρ is cut into two equal parts. The resistivity of the two parts is equal to:
The resistivity does not change if ____________.
Two resistors of resistance 2 Ω and 4 Ω when connected to a battery will have
Write the relationship between electrical resistance and electrical resistivity for a metallic conductor of a cylindrical shape. Hence derive the SI unit of electrical resistivity.
State the order of specific resistance of a metal.
State the order of specific resistance of an insulator.
What length of copper wire of specific resistance 1.7 × 10-8 Ω m and radius 1 mm is required so that its resistance is 2 Ω?
