Home
Class 11
CHEMISTRY
in milikan experiment static electric...

in milikan experiment static electric charge on the oil drops has been obtained by shining X-rays if the static electric charge on the oil drop is -1.282 `xx 10^(18) C` calculate the number of electron presenct on it.

Text Solution

Verified by Experts

Static electric charge on the oil drop (q ) = 1.282 `xx 10^(18) C`
Charge on one electron (e ) = 1.6022 `xx 10^(19) C`
Number of electron = `(q ) /( e )`
`(1.282 xx 10^(18) C)/( 1.6022 xx 10^(19) C)`
8.00
Promotional Banner

Topper's Solved these Questions

  • STRUCTURE OF ATOM

    KUMAR PRAKASHAN|Exercise Section -A (Try Your Self -1)|4 Videos

  • STRUCTURE OF ATOM

    KUMAR PRAKASHAN|Exercise Section -A (Try Your Self -2)|5 Videos

  • STATES OF MATTER

    KUMAR PRAKASHAN|Exercise QUESTION PAPER FROM MODULE (SECTION - A)|4 Videos

  • THE P-BLOCK ELEMENTS

    KUMAR PRAKASHAN|Exercise SECTION-D NCERT EXEMPLAR SOLUTION (MCQs) LONG ANSWER|25 Videos

Similar Questions

Explore conceptually related problems

A certain particle carreis 2.5 xx 10^(16) C of static electric charge .Caculate the number of electrons presenct in it.

An electric dipole is prepared by taking two electric charges of 2 xx 10^(-8) C separated by distance 2 mm. This dipole is kept near a line charge distribution having density 4 xx 10^(-4) C/m in such a way that the negative electric charge of the dipole is at a distance 2 cm from the wire as shown in the figure. Calculate the force acting on the dipole. [Take k=1/(4piepsilon_(0)) = 9 xx 10^(9) Nm^(2)C^(-2) ]

A conducting sphere of radius 10 cm has an unknown charge if the electric field 20 cm from the centre of the sphere is 1.5 xx10^(3) N/C and points radialy inward what is the net charge on the sphere

Two point charges q_(A) =3 mu c and q_(B)=-3 mu c are located 20 cm apart in a vacuum (a) what is the electric field at the midpoint O of the line AB joining the two charges (b) if a negative test charge of magnitude 1.5 xx 10^(-9) c is placed at this point what is the force experienced by the test charge

The intensity of the electric field required to keep a water drop of radius 10^-5 cm just suspend in air when charged with one electron is approximately.

A student performs an experiment on photoelectric effect,using two materials A and B.A plot V_("stop")vs v is given in figure. (i)Which material A or B has a higher work function? (ii)Given the electric charge of an electron =1.6xx10^(-19) C,find the value of the h obtained from the experiment for both A and B.Comment on whether it is consistent with Einstein's theory:

Columb law for electrostatic force between two point charges and newton law for gravitational force between two the distance between the charges and masses respectively (a) compare the strength of these forces by determining the ratio of their magnitudes (i) for an electron and a proton and (ii) for two protons (b) estimate the acceleratons of electron and proton due to the electrical force oftheir mutual attarction when they are 1A (=10^(-10) m) a part (m_(p)=1.67xx10^(27) kg m_(e )=9.11xx10^(-31) kg)

Two point charges q_(A) =3 muC and q_(B) = -3 muC are located 20 cm apart in vacuum. (a) What is the electric field at the midpoint O of the line AB joining the two charges ? (b) If a negative test charge of magnitude 1.5 xx 10^(-9) C is placed at this point, what is the force experienced by the test charge ?

Coulomb's law for electrostatic force between two point charges and Newton's law for gravitational force between two stationary point masses, both have inverse-square dependence on the distance between the charges and masses respectively, (a) Compare the strength of these forces by determining the ratio of their magnitudes (i) for an electron and a proton and (ii) for two protons. (b) Estimate the accelerations of electron an proton due to the electrical force of the mutual attraction when they are =10^(-10)m apart? (m_(p) = 1.67 xx 10^(-27) kg, m_(e) = 9.11 xx 10^(-31) kg)

A charges particles particle is kept in equilibrium in the electric field between the plates of millikan oil drop experiment. If the direction of the electric field between the plates is reversed, then calculate acceleration of the charged particle.