An infinite line of charge with linear density of charge, `lambda=2.0times10^(-6)C/m` exists. The electrostatic force on a point charge of `5.0mC` at a distance of `50cm` from the line of charge will be

The electric field due to a point charge at a distance 6 m from it is 630 N/C. The magnitude of the charge is

Electric lines of force about negative point charge are

An electric dipole consists of charges pm 2.0 xx 10^(-8) C separated by a distance of 2.0 xx 10^(-3) m. It is placed near a long line charge of linear charge density 4.0 xx 10^(-4) C m^(-1) as shown in figure (30-W4), Such that the negative charge is at a distance of 2.0 cm from the line charge. Find the force acting on the dipole.

An infinite line charge produces a field of 18xx10^(4) N/C at a distance of 2 metre from it. The linear charge density is

An electric dipole consists of charges pm 2.0 xx 10^(8) C separated by a distance of 2.0 xx 10^(-3) m. It is placed near a long ilne charge of linear charge density 4.0 xx 10^(-4) C m^(-1) as shown in figure (30-W4), Such thet the negative charge is at a distance of 2.0 cm from the line charge. Find the force acting on the dipole.

For an infinite line of charge having linear charge density lambda lying along x-axis the work done in moving a charge q form C to A along CA is

If the linear charge density of a cylinder is 4 mu C m^(-6) ,then electric field intensity at point 3.6 cm from axis is :

An infinite line charge produces a field of 7.182 xx 10^(8) N//C at distance of 2 cm. the linear charge density is

An infinite line charge produces a field of 9xx10^(4) N/C at a distance of 2cm. Calculate the linear charge density.

There is an infinite line of uniform linear density of charge +lamda . A particle of charge -q & mass m is projected with initial velocity v_(0) at an angle theta with the line of charge from a distance a from it. The point charge moves in plane containing line charge and point of projection The speed of the particle of found to be minimum when it's distance from the line of charge is ae^((npimepsilon_(0)^(2)//qlamda)) . The value of n is (ingnore gravity)