1) if a positively charged particle q and mass m is placed and released from res

Question

1) if a positively charged particle q and mass m is placed and released from rest at point p . what will be the speed after a long time after the release ?

2) what is the work needed to assemble the original charge distribution (Q1 , Q2 , Q3 ) ?

3) A charge of is distributed uniformly a long the y- axis from y=0 to y=4m. find the total electric potential at the point on the x axis at (3,0) ( dont integral)

4) When a negative charge is released and moves along an electric feild line. it moves to a position of : a) lower potential and lower potential energy, or higher ,higher or lower ,higher or higher lower ?

5)what is The electric potential inside a charged solid spherical conductor in equilibrium ?

Explanation / Answer

1) We know that

         qV =(1/2)mv2 then v =Sart(2qV/m)

2) W =(1/4pieo)[q1q2/r12+q3q1/r13+q2q3/r23]

4)

The force acting on the charge in a electric field is F =qE, always the electric field lines points in the direction of decreasing electric potenitial.If it is a negative charge then it naturally moves in the direction of increasing potential

5) The electric potential inside a charged solid spherical conductor in equilibrium is constant and equal to the value at the surface.

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