Answer the question number 7

Answer the question number 7 G.M.B. TUTORIAL 'IOME graphiølly with 2) "'hy do the c Why fie shows field positive done by field moving a chu-gc from Q P, positive r Give shows a point Charge •Q, located at W2 the a shell, Draw the electric field lines for the given system 6) Why should electrostatic field be zero inside conductor? 7) Two dipoles. madc from charges ± q and ± Q respectively. have equal dipole moments. Give the (i) ratio the •separations' of these pairs Of charges, (ii) angle between the Gipele axis of these tnc 8) Dcfine the term 'electric flux'. Write its S. I. unit. 9) What is the electric flux through a cube of side cm which encloses an electric dipole. 10) How does the electric flux due to a point charge enclosed by a spherical Gaussian surface gel affected when its radius is increased? I) TWO charges of magnitudes — 2Q and + Q are located at points (a. O) and (40, O) respectively. What is the electric flux due to these charges through a sphere of radius '30' with its centre at the origin? Short Answer Type Questions: 12) A small metallic sphere carrying charge + Q is located at the centre of a spherical cavity in a large uncharged metallic spherical shell. Write the charges on the inner and outer surfaces of the shell. Write the expression for the electric field at the point pt. 13) Find the expression for electric field intensity in an axial position due to electric dipole. 14) A charge + Q is uniformly distributed within a sphere of radius R. Find the electric field, due to this charge distribution, at a point distant r from the centre of the sphere where: G.M.B. Tutorial Home, H.O: Lamb Road, Near Ugratara Mandir, Latasil, Guwahati-I , Phone: 98640-49773 Br. O: Panbazar M_G. Road, Near Sukreswar Mandir, Ghy•l, Phone: 88110-23113 1 Page

Dear student,

Let separation between 1st pair of charge is

d_{1}

dipole moment of 1st pair =

p_{1} = q * d_{1} s i m i l a r l y p_{2} = Q * d_{2} g i v e n t h a t p_{1} = p_{2} q * d_{1} = Q * d_{2} \frac{d_{1}}{d_{2}} = \frac{Q}{q}

since it is given that dipole moment is same for both pair, and dipole moment is a vector quantity hence both dipole are parallel
so angle between their axis will be zero digree.

Regards.

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