Jk Bose old paper of physics paper series B PDF download

Jkbose old paper of physics pdf download set b 

PHYSICS

Time 3 Hours + 15 Minutes extra to read the question paper
                                        [Maximum Marks : 70 Section ‘A’

        (Long Answer Type Questions)

Q Name and state the theorem which relates the enclosed charge inside a closed surface with the electric flux through it. Use the theorem to obtain the electirc field due to an infinite plane sheet of charge.

                         Or

Find an expression for the electric i‘ d at a point on the axial line of an electric dipole.

2. With the help of a neat diagram, give the name, principle, , construction and working of a machine used to accelerate positively charged particles, so as to carry nuclear reactions.

                                Or

Find an expression for the magnetic force on a current ing conductor when placed in a uniform magnetic field.  ”identity-the two pairs of perpendicular vectors in the expression. When is force maximum and minimum ?

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