Home
Class 12
PHYSICS
Show that one ampere is equivalent to a ...

Show that one ampere is equivalent to a flow of `6.25xx10^(8)` elementary charges per second.

Text Solution

Verified by Experts

Here `I=1A, t =1 s, e =1.6xx10^(-19)C`
As `I=(q)/(t)=(n e)/(t)`
Number of electrons, `n=(It)/(e )=(1xx1)/(1.6xx10^(-19))=6.25xx10^(18)`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    FULL MARKS|Exercise Additional Questions Solved (Long Answer Questions)|4 Videos
  • COMMUNICATION SYSTEMS

    FULL MARKS|Exercise ADDITIONAL QUESTIONS  (Additional problems)|3 Videos
  • DUAL NATURE OF RADIATION AND MATTER

    FULL MARKS|Exercise ADDITIONAL QUESTIONS -( ADDITIONAL NUMERICAL PROBLEMS : )|10 Videos

Similar Questions

Explore conceptually related problems

Show that one ampere is equivalent to a flow of 6.25xx10^(18) elementary charges per second.

A wire is situated in the eastwest direction and the current flowing through is 0.3 ampere. The wire is held perpendicular to magnetic field of 0.2 xx 10^(-4) N (amp -meter). The force acting on the wire will be

Knowledge Check

  • The rate constant of the reaction A rarr B is 0.6xx10^(3) mole per litre per second. If the concentration of A is 5 M, then concentration of B after 20 minutes is:

    A
    `0.36` M
    B
    `0.72` M
    C
    `1.08` M
    D
    `3.60` M
  • The resistivity of the material of a potentiometer wire is 5 xx 10^(-6)Omega m and its area of cross section is 5 xx 10^(-6)m^(2) . If 0.2 A current is flowing through the wire, then the potential drop per metre length of the wire is

    A
    0.1V`m^(-1)`
    B
    0.5V`m^(-1)`
    C
    0.25`m^(-1)`
    D
    0.2`m^(-1)`
  • Similar Questions

    Explore conceptually related problems

    Total number of atoms per mole is 6.023 xx10^(23)

    A wire is situated in the east - west direction and the current flowing through is 0.3 ampere. The wire is held perpendicular to magnetic field of 0.2 xx 10^-4 N (amp - meter). The force acting on the wire will be ….

    the count rate from a radioactive sample falls from 4.0xx10^6 per second to 1.0xx10^6 per second in 20 hours.What will be the count rate 100 hours after the begnning ?

    A 2 mu C charge moving around a circle with a frequency of 6.25 xx 10^(12) Hz produces a mganetic field 6.28 tesla at the centre of the circle. The radius of the circle is

    Assume that the total surface area of a human body is 1.6m^(2) and that it radiates like an ideal radiator. Calculate the amount of energy radiates per second by the body if the body temperature is 37^(@)C . Stefan constant sigma is 6.0xx10^(-8)Wm^(-2)K^(-4) .

    The electric field associated with a monochromatic beam of light becomes zero, 1.2xx10^15 times per second. Find the maximum kinetic energy of the photoelectrons when this light falls on a metal surface whose work function is 2.0eV, h=6.63xx10^(-34)Js .