Learning Goal: I’m working on a physics test / quiz prep and need the explanation and answer to help me learn.
Question1. What is the force between two small charged spheres having charges of 2 x 10 C and 3 x 107C placed 30 cm apart in air?
Question2. The electrostatic force on a small sphere of charge 0.4 uC due to another smallI sphere of charge – 0.8 uC in air is 0.2 N. (a) What is the distance between the two spheres? (b) What is the force on the second sphere due to the first?
Question. Four point charges qh=2 C, q,=-5 C, qe =2 uC, and qo =-5 C are located at the corners of a square ABCD of side 10 cm. What is
the force on a charge of 1 C placed at the centre of the square?
Question8. Two point charges q, =3 uC and qa = -3 uC are located 20 cm apart in vacuum.
(a) What is the electric field at the midpoint O of the line AB joining the two charges?
(b) Ifa negative test charge of magnitude 1.5 * 109 C is placed at this point, what is the force experienced by the test charge?
Question9. A system has two charges q, = 2.5 x 107 C and qa -2.5 x 107 C located at points A: (0, 0, – 15 cm) and B: (0, 0, + 15 cm), respectively. What are the total charge and electric dipole moment of the system?
