Class 12 Exam  >  Class 12 Questions  >  Two wires each of radius of cross section r b... Start Learning for Free
Two wires each of radius of cross section r but of different materials are connected together end to end (in series). If the densities of charge carriers in the two wires are in the ratio 1 : 4, the drift velocity of electrons in the two wires will be in the ratio.
  • a)
    1 : 2
  • b)
    2 : 1
  • c)
    4 : 1
  • d)
    1 : 4
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Two wires each of radius of cross section r but of different materials...
Let  n1​ and n2​ be the densities of charge carriers in the two wires, Vd1​​ and Vd2​​ be the drift velocities of charge carriers in the two wires,
A be the area of cross section,
e is the charge on electron and
I is the current flowing through both the wires
Hence, I=n1​eAVd1​​=n1​eAVd2​​
∴n1​Vd1​​=n2​Vd2​​
∴ Vd1/Vd2​​ ​​​=​n2​​/n1
∴ ​​Vd1​​​/ Vd2=4/1​
Explore Courses for Class 12 exam
Two wires each of radius of cross section r but of different materials are connected together end to end (in series). If the densities of charge carriers in the two wires are in the ratio 1 : 4, the drift velocity of electrons in the two wires will be in the ratio.a)1 : 2b)2 : 1c)4 : 1d)1 : 4Correct answer is option 'C'. Can you explain this answer?
Question Description
Two wires each of radius of cross section r but of different materials are connected together end to end (in series). If the densities of charge carriers in the two wires are in the ratio 1 : 4, the drift velocity of electrons in the two wires will be in the ratio.a)1 : 2b)2 : 1c)4 : 1d)1 : 4Correct answer is option 'C'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Two wires each of radius of cross section r but of different materials are connected together end to end (in series). If the densities of charge carriers in the two wires are in the ratio 1 : 4, the drift velocity of electrons in the two wires will be in the ratio.a)1 : 2b)2 : 1c)4 : 1d)1 : 4Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two wires each of radius of cross section r but of different materials are connected together end to end (in series). If the densities of charge carriers in the two wires are in the ratio 1 : 4, the drift velocity of electrons in the two wires will be in the ratio.a)1 : 2b)2 : 1c)4 : 1d)1 : 4Correct answer is option 'C'. Can you explain this answer?.
Solutions for Two wires each of radius of cross section r but of different materials are connected together end to end (in series). If the densities of charge carriers in the two wires are in the ratio 1 : 4, the drift velocity of electrons in the two wires will be in the ratio.a)1 : 2b)2 : 1c)4 : 1d)1 : 4Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12. Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.
Here you can find the meaning of Two wires each of radius of cross section r but of different materials are connected together end to end (in series). If the densities of charge carriers in the two wires are in the ratio 1 : 4, the drift velocity of electrons in the two wires will be in the ratio.a)1 : 2b)2 : 1c)4 : 1d)1 : 4Correct answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Two wires each of radius of cross section r but of different materials are connected together end to end (in series). If the densities of charge carriers in the two wires are in the ratio 1 : 4, the drift velocity of electrons in the two wires will be in the ratio.a)1 : 2b)2 : 1c)4 : 1d)1 : 4Correct answer is option 'C'. Can you explain this answer?, a detailed solution for Two wires each of radius of cross section r but of different materials are connected together end to end (in series). If the densities of charge carriers in the two wires are in the ratio 1 : 4, the drift velocity of electrons in the two wires will be in the ratio.a)1 : 2b)2 : 1c)4 : 1d)1 : 4Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of Two wires each of radius of cross section r but of different materials are connected together end to end (in series). If the densities of charge carriers in the two wires are in the ratio 1 : 4, the drift velocity of electrons in the two wires will be in the ratio.a)1 : 2b)2 : 1c)4 : 1d)1 : 4Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Two wires each of radius of cross section r but of different materials are connected together end to end (in series). If the densities of charge carriers in the two wires are in the ratio 1 : 4, the drift velocity of electrons in the two wires will be in the ratio.a)1 : 2b)2 : 1c)4 : 1d)1 : 4Correct answer is option 'C'. Can you explain this answer? tests, examples and also practice Class 12 tests.
Explore Courses for Class 12 exam
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev