# Physics on Collision

May 1st, 2015
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Elastic Collision between carts of equal mass Elastic Collision between carts of unequal mass Inelastic Collision between carts of equal mass:

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INTERNATIONAL INDIAN SCHOOL, RIYADHGRADE XIIPHYSICS FIRST TERM WORKSHEET 2013 14CH -1 Electric charge and Fields1. Electric charge is quantized. What is meant by this statement?2. Define the term electric dipole moment. Is it scalar or vector?3. Write the SI unit of electric flux.4. Why no two electric lines of force can intersect each other.5. Derive an expression for torque acting on an electric dipole in a uniform electric field.6. A proton and an electron are placed 1.6 cm apart in free space. Find the magnitude of electrostatic force between them. What is the nature of this force?7. Derive an expression for dipole field intensity at a point on the dipole axis.8. State Gausss theorem in electrostatics. Apply this theorem to derive an expression for electric field intensity at a point near an infinitely long straight charged wire.9. A conducting sphere of radius 10 cm has an unknown charge. If the electric field 20 cm from the center of the sphere is 1.5 x 103 N/C and points radially inwards, what is the net charge on the sphere?Electromagnetic Induction and Alternating currents1. What are eddy currents? How can they be minimized?2. Stat

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