Field Theory Answers

cosider rectangle PQRS of size 20cm and 156cm with charges 0.000002C, 0.000004C and 0.000009C at PQ and S respectively. determine the resultant electric field intensity at fourth corner R of the rectangle due to the changes PQS

When does a dart have the greatest change in momentum -- when it bounces off the car or when it doesn't? Explain.

If an electron is a an excited state in the underlying electric field then what is a positron? Is there a positron field? or is a positron a different form of existed state in the same electric field?

A vector has an x component of -23.0 units and a y component of 35.8 units. Find the magnitude and direction of this vector.

calculate the magnitude of the polarisation for a dielectric material in an electric field of 10^6 V/m, given that the susceptibility of the material is 4.38

What is the unit of electric charge in the MKS system?

A ball hits a wall horizontally at 6m/s, it rebounds horizontally at 4.4 m/s, the ball is in contact with the wall for 0.04s, what is the acceleration?

A -12 nC charge is located at (x, y) =(1 CM, 0 CM) what are the electric fields at the positions (x, y) =(5,0) CM (-5,0)cm and (0,5)cm write each electric field vector in component form

A parallel plate capacitor has an electric field of 20 N/C and a plate area of 0.5 m^2. What is the total charge on the capacitor?

Two buckets of nails are hung one above the other and are pulled up to a roof by rope. Each bucket has a mass of 5 kg. The tension in the rope connecting the buckets is 60 N calculate the acceleration of the buckets