Electricity and Magnetism Answers

q1 = 1nC, q2 = 1nC and q3 = -2nC. Which are located at x = 0 and y= 0, x= 1 cm and y= 0 and x= 1cm and y = 2cm respectively. What is the net force on q1 and in what direction?

Using Gauss’ theorem, calculate the flux of the vector field A= x^3 i + x^2z j + yz k

through the surface of a cube of side 2 units

A charged particle moving perpendicular to a magnetic field will experience

The expression of the magnetic field associated with an electromagnetic wave in

vacuum is given by

B = (100Vm^1) z sin ( 2π × 10^8t + kz)

Determine the wave number, frequency and the direction of propagation of the wave,

and the magnitude and direction of the magnetic field associated with the wave.

Explain electric field

Calculate the magnitudes of magnetic intensity

H and the magnetic field B at the centre of a 2000-turn solenoid which is 0.50 m long and carries a current of

1A.

Determine the work done by a force F = xyi + yzj + xzk in taking a particle along 

the path defined by the equation r(t) = ti + 2t^2j + t^3k, 0<= t <= 1 from t=0 to t= 2. 

is the force conservative??​

there is an electric potential of 120V at a point that is 0.25m away from a charge. find the magnitude and the sign of charge

Suppose a telephone linking lagos and london is a copper wire length 6000km.if the current in this wire is 0.6mA,what is the velocity electron of the wire?if telephone impulses were to travel the speed ,how long will it take to transmit a message along the line?estimate the actual time take.The diameter of the wire is 5×10^-4m,the number density of copper atoms is 8 4×10^28m^-3 and the speed em wave is 3×10^8ms^-1.

1. Two charges are arranged so that a -2.5μC charge is placed at the origin and a 1.7μC charge is placed 0.50m to the right.  What is the electric field at (0.50m, 1.0m)