Physics Questions And Answers :: Electric Current: part1

Basic Science : Electric Current QUESTIONS AND ANSWERS :: part1 : 1 to 5

Following Basic Science multiple choice objective type questions and answers will help you in many types of 2014 job and other entrance examinations :

1.The drift velocity of the electrons is given by Vd =

Ee τ2
e/m. τ
Ee/ τ. m
eE/m. τ

2.The current through a conductor, I is equal to

nAeE τ/m
nAe2E τ/m
nAe2E τ/n
nAeE τ/n

3.The electron current and the conventional current

flow in the same direction
flow in the opposite direction
do not coexist

4.The number of electrons flowing per second that makes a current of I ampere is

6.25  109
6.25  107
6.25  1010
6.25  1018

5.The drift velocity of an electron is the velocity

super imposed on random motion
in the absence of electric field
due to magnetic field
in the direction of electric field

More Electric Current QUESTIONS AND ANSWERS available in next pages

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