A charge of 8 mC is located at the origin. Calculate the work done in taking a small charge of `-2xx10^(-9)C` from a point P (0,0,3 cm) to a point Q (0,4 cm, 0) via a point R (0,6 cm, 9cm).
Calculate the potential at a point P due to charge of 5xx10^(-7) C located 11 cm away.
Calculate the potential at a point P due to charge of 4 xx 10^(-7)C located 9 cm away. Hence obtain the work done in bringing a charge of 2 xx 10^(-9)C from infinity to the point. P. Does the answer depend on the path along which the charge is brought?
Two charges -q and +q are located at points (0,0,-a) and (0,0,a) respectively. a. What is the electrostatic potential at the points (0,0,z) and (x,y,0)? b. Obtain the dependence of potential on the distance r of a point from the origin which r/a gt gt 1 . c. How much work is done in making a small test charge from the point (5,0,0), (-7,0,0) along the x-axis? Does the answer change if the path of hte test charge between the same points is not along the x-axis?
A force of 0.01 N is exerted on a charge of 1.2 xx 10^(-5) C at a certain point. The electric field at that point is
(a) Calculate the electric potential at points P and Q as shown in the figure below. (b ) Suppose the charge +9muC is replaced by -9muC find the electrostatic potentials at points P and Q ( c) Calculate the work done to bring a test charge +2muC from infinity to the point P. Assume the charge +9muC is held fixed at origin and +2muC is brought from infinity to P.
Two charges 6muC and 3muC are kept 9 cm apart in free space. Calculate the work done to move 3muC" by "3cm towards 9muC .
NCERT TAMIL-ELECTROSTATIC POTENTIAL AND CAPACITANCE -ADDITIONAL EXERCISES
