EASY
12th ICSE
IMPORTANT
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Electrons in metals drift due to the force exerted on them by the electric field. Then, why do they acquire an unaccelerated (steady) velocity?

Important Questions on Electric Resistance and Ohm's Law

EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 5 - Electric Resistance and Ohm's Law>QUESTIONS>Q 20
Are the paths of electrons in metals straight lines between successive collisions (with the positive ions in the metal) in the absence of electric field?
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 5 - Electric Resistance and Ohm's Law>QUESTIONS>Q 20
Are the paths of electrons in metals straight lines between successive collisions (with the positive ions in the metal) in the presence of electric field?
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 5 - Electric Resistance and Ohm's Law>QUESTIONS>Q 21
Although the drift velocity of electrons is very small, yet an electric bulb lights up almost instantly when switched on, whatever be the distance of the bulb from the switch. Why?
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 5 - Electric Resistance and Ohm's Law>QUESTIONS>Q 22
A PD V exists across a conductor of length l and diameter d. How are the electric field E and the resistance R of the conductor affected when Vis halved?
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 5 - Electric Resistance and Ohm's Law>QUESTIONS>Q 22
A PD V exists across a conductor of length l and diameter d. How are the electric field E and the resistance R of the conductor affected when l is halved?
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 5 - Electric Resistance and Ohm's Law>QUESTIONS>Q 22
A PD V exists across a conductor of length l and diameter d. How are the electric field E and the resistance R of the conductor affected when d is doubled?
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 5 - Electric Resistance and Ohm's Law>QUESTIONS>Q 23
A PD V exists across a copper wire of length l and diameter d. How will the drift velocity affected if V is doubled?
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 5 - Electric Resistance and Ohm's Law>QUESTIONS>Q 23
A PD V exists across a copper wire of length l and diameter d. How will the drift velocity affected if l is doubled?