CBSE Class 12science Physics Electric Charges and Fields

Please solve this question
 Derive an expression for the torque acting on an electric dipole kept in a uniform electric field. When is this torque maximum? What will happen if the field were not uniform?
 calculate the electric field due to the electric dipole of length 2 cm having charge 4 microcoulomb at an angle of minus 60 degree for the direction of electric dipole moment 1 meter for the center to the dipole
 CALCULATE ELECTIC FEILD INTENSITY DUE TO DATIPOLE OF LENTH 10 CM HAVING CHARGE 5000MICROCOULUMB AT POINT ON AXIS OF LENTH 20 CM FROM ONE OF THE CHARGE
 An electric dipole with dipole moment 4×109cm is aligned at 30° with the direction of a uniform electric field of magnitude 5×104N/C. Calculate the magnitude of torque acting on the dipole?
 Two short electic dipoles of moment P and 8P are placed in opposite direction on a line at a distance of 15cm. The electic will be zero at point between the dipoles wose distance from the dipole of moment P is
 Obtain the ratio of Electric field formed by an ideal dipole at points lying on axial and equatorial axis.
 Determine electric field at a point p for two identical dipole placed along x and y axis with dipole moment p and angle 45°
 the electric field at a point on the axial line at a distance of 10cm from the centre of an electric dipole is 3×10³NC·¹ in air while at a diatance of 15cm,the electric field is 2×10³NC·¹ Calculate the length of an electric dipole. 3×10³NC·¹
 An electric dipole moment 4x10^9 cm is aligned at 30°with the direction of a uniform electric field of magnitude 5x10^4 NC^1.calculate the magnitude of the torque acting on the dipole?