Electricity and Magnetism Answers

1. Calculate the magnitude and direction of the electric field 0.50m from a +8.23^-9C point charge.

2. An electric field dipole consists of two equal but unlike charges separated by a distance. Two point charges, q1=+2.3×10^-6C and q2=3.4×10^-6, are separated by 8.9×10^-2m, forming an electric dipole. Find the electric field halfway between the dipole.

1. Compute for the amount of charge (q) of a 15 V battery with -45 J potential energy
2. A metal sphere has 5x10^-9C static charge. Compute the voltage if the radius is equal to 0.05m. (k=8.99 x 10^9 N.m^2/C^2
3. Find the Total capacitance of the three given capacitors in series connection, given their individual capacitances, 4.0 μF, 15.0 μF.
4. Find the net capacitance of the three given capacitors connected in parallel, given their individual capacitances, 2.0 μF, 5.0, μF, 8.0 μF.
5. A parallel plate capacitor was placed 0.002 m apart. Compute for the capacitance if the area each plate is equal to 0.025 m^2. (ε0 = 8.85x10^-12 F/m)

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A charge of 6µC exerts a force of 2.4 x 10-4 N in the right side of a positive test charge. What is the magnitude and direction of the electric field at the location of the test charge?

Two charges repel each other with a force of when they are 10cm apart. When they are brought closer together to 2cm apart, the force between them becomes

In a rectangular coordinate system a positive point charge q = +6.00 nC is placed at point x = +1.50 m, y = 0 m, and an identical charge is placed at x = -1.50 m, y = 0 m, Find the x- and y-components, the magnitude, and the direction of the electric field at x = 0, y = 0.200 m.

Two equally charged particles are held 3.2×10-3 m apart and then released from rest. The initial acceleration of the first particle is observed to be 7.0 m/s2 and that of the second to be 9.0 m/s2. If the mass of the first particle is 6.3 x l0-7 kg, what are (a) the mass of the second particle and (b) the magnitude of the charge of each particle

Two point charges of 0.04 x 10^-6 C and 0.16 x 10^-6 C are 20 cm apart in air. What is the potential energy of the system?

For the network of capacitors shown, find the equivalent capacitance and the total charge when connected to a 36 V source. Note that C₁ = C₂ = 4.0 F and C₃ = C₄ = 6.0 F.

two positive point charges q are placed on the y-axis at y=a and y=-a. a negative point charge "-q" is located at some point in the +-axis.

A proton is placed in a uniform electric field of 2.75 × 103 N/C. Calculate the

magnitude of the electric force felt by the proton. (The charge of a proton is

+1.6 × 10−19 C).