Two positive charges `q_1 and q_2` are moving with velocities `v_1 and v_2` when they are at points A and B, respectively, as shown in Fig. The magnetic force experienced by charge `q_1 ` due to the other charge `q_2` is

Write the vector form of force between two charges q_1 and q_2 having r_1 and r_2 as their position vectors, respectively .

The value of charge q_1 ,q_2 and q_3 as shown in the figure are

Two point charges q_1 and q_2 are such that q_1q_2 lt 0 . What is the nature of the force acting between the two charges?

Three positive point charges q_1,q_2,and q_3 form an isolated system. Suppose the charges have generated a property due to which like charges also attract. The charges are moving along a circle with same speed maintaining angles as shown in the figure. The charge q_1 experiences a force f_1 due to other two charges. Similarly, q_2 experiences a force f_2 and q_3 , a force f_3 . The ratio of f_1 : f_2 : f_3 is

An electric charge q is moving with a velocity v in the direction parallel to the magnetic field B. The magnetic force acting on the charge is

Consider four equal charges q_(1),q_(2),q_(3) and q_(4)=q=+1muC located at four different points on a circle of radius 1m , as shown in the figure. Calculate the total force acting on the charge q_(1) due to all the other charges .

Three electric point charges q_0,q_1 and q_2 are at distances vect r_0,vec r_1 and vec r_2 respectively with respect to same origin. What is the force on charge q_0 in the filed of charges q_1 and q_2 ?