Advertisements
Advertisements
प्रश्न
What is meant by the drift speed of free electrons?
Advertisements
उत्तर
The average minimum and maximum velocity of free electron between consecutive collisions with positive ions is called drift velocity.
APPEARS IN
संबंधित प्रश्न
If the potential difference across the ends of a conductor is 220 V and the resistance of the conductor is 44 Ω (ohm), then the current flowing through is _________.
- 0.2 A
- 0.5 A
- 2 A
- 5 A
Name the unit of electrical resistance and give its symbol.
The graph between V and I for a conductor is a straight line passing through the origin.
- Which law is illustrated by such a graph?
- What should remain constant in a statement of this law?
An electric bulb draws 1.2 A current at 6.0 V. Find the resistance of filament of bulb while glowing.
How would you connect two resistors in series? Draw a diagram. Calculate the total equivalent resistance.
Calculate the effective resistance across AB?

An ammeter placed in series with an electric radiator reads 0.5 amps and a voltmeter placed across it reads 230 volts. What is the resistance of the radiator?
What is non ohmic device?
Obtain the macroscopic form of Ohm’s law from its microscopic form and discuss its limitation.
Ohm's law deals with the relationship between ______
