Electricity and Magnetism Answers

What is the force on an electron in an electric field of 500 N/C?

A charge of 5 X 10^-6 C experiences a force of 10 N at a certain point in space. What is the electric field intensity?

Four point charges are equally separated by 1.0 m in air with q1= 30 nC, q2 = 4.0 nC, q3 = 2.0 nC, q4 = 5.0 nC. (a) What is the potential at a point halfway between q1 and q2? (b) How much work is needed to bring a 6 nC charge from infinity to this point?

3.The following three charges are arranged as shown. Determine the net force acting on the charge on the far right (q3 = charge 3). q1 = 1.5 x 10^-6C,q2 = - 2.3 x 10^-6C,q3 = -3.5 x 10^-3C.

4.The following charges are placed on the vertices of a right triangle. Charges are the same as that on problem 3.Find the net electrostatic force on charge 1.

Which of the following is TRUE about the speed in a vacuum of these colors of light? 

A. All colors of light have equal speed in a vacuum.

B. All colors of light have varying speeds in a vacuum.

C. Violet light has the highest speed while the red light has the lowest speed.

D. Red light has the highest speed while violet light has the lowest speed.

1. Two charges Q1=-5 NC and Q2=-7 nc are separated by 8 cm. Calculate tHe electric potential at point.

2. A research van de Graaf generator has a 2.50 mm diameter sphere with a charge of 6.00 UC on it.

A. What is the potential near its surface?

B. At what distance from its center is the potential 1.50 MV?

Two charges lie on positive x-axis. Charge A (5.0 x 10^-9 C) is 4.0 cm from the origin and Charge B is 6.0 cm from the origin. (-7.0 x 10^-9 C). What is the total force exerted by these two charges on Charge C (8.0 x 10^-9 C) located at the origin?

Two charges lie on positive x-axis. Charge A (5.0 x 10-9 C) is 4.0 cm from the origin and Charge B is 6.0 cm from the origin. (-7.0 x 10-9 C). What is the total force exerted by these two charges on Charge C (8.0 x 10-9 C) located at the origin?

 solve for the Force of 2 charges, q1 = -63 nC and q2 = +42 nC with a distance of 5.5 cm. (Note: ϵ0 has a value of 8.85 x 10⁻¹² C²/ N m²) (C²/ N m²)

Find the potential at a distance of 0.07 m from a -6 nC charge

Spheres A, B, and C have charges +8.0 𝐶, +12.0 𝐶, and −5.0 𝐶, respectively. The three spheres are allowed to touch each other simultaneously and then separated. (a) What is the total charge on the three spheres before and after touching each other? (b) What is the final charge on each sphere assuming they are identical? (c) What is the final charge on each sphere assuming that 𝑟_𝐴=𝑟_𝐵=2𝑟_𝐶?