# ELECTROSTATICS show solution

ELECTROSTATICS show solution

Coulomb’s Law

1. A point charge is placed 0.12m away from another charge . Solve for the electrostatic force exerted by the charges to each other.q
2. Two charged spheres of identical charges q = 4.0 µC is separated 0.70m away from each other. Solve the electrostatic force experienced by the charges.
3. Two balloons with charges of +3.37 µC and -8.21 µC exerted an attractive force towards each other with of 0.0626 N. Determine the how far the charges from each other.

Electric Field

1. Determine the magnitude of uniform electric field if point charge is placed 25cm from the source.
2. A charge is placed in a uniform electric field . Solve for the electrical force on the charge.
3. A dipole is set up 0.15m apart with a charge magnitude of C for each charge (one is +C, the other one is -C since dipole). Solve for the magnitude of electric field at the midpoint of the dipole.

Electric Flux and Gauss’s Law

1. A circular plane whose r=2.2m is placed in an electric field E=800N/C. The electric field makes an angle of 20 ͦwith the plane. Solve for the magnitude of the electric flux through the plane.
2. A square plane with each side s=1m is placed in an electric field E=800N/C. The electric field makes an angle of 90 ͦwith the plane. Solve for the magnitude of the electric flux through the plane.
3. Solve for the electric flux through a 3D closed surface enclosing a charge

Electric Potential Energy, Electric Potential, and Potential Difference

1. A test charge C is found 0.5m from a point charge that creates a uniform electric field . Solve for the electric potential energy of the test charge.
2. A charge in a uniform electric field  is moved from initial distance  to final distance . Solve for the following:
1. Electric potential energy of charge q at initial distance
2. Electric potential energy of charge q at final distance
3. Electric potential of charge q at initial distance
4. Electric potential of charge q at final distance
5. Potential difference from initial distance to final distance

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