Electricity and Magnetism Answers

Two-point charges, q1, which has a charge of -76.11 uC and q2, which has a charge of 13.33 uC, are separated by a distance of 24.67 cm. Identify the field's magnitude at point A between the two charges if A is 10.39 cm away from the negative charge.

Two charges are on the x-axis. Charge q 1= +35 nC is at x = 3.00 cm while charge q 2= -65nC is at x = 6.00 cm. Find the magnitude and direction of

a) the electric force that q 1 exerts on q2 ; and

b) the electric force the q 2 exerts on q1 .

2. A positive charge of 10 -8 coulombs (C) experiences a force of 0.95 N when located at a certain point in an electric field. Find the intensity (magnitude) of the electric field at that point.

protons in uniform magnetic field of .3T follow a circular trajectory with 20cm radius. Determine the speed of the protons. (q=1.6×10 -¹⁹ C and m=1.673×10 -²⁷ kg)

protons in uniform magnetic field of .3T follow a circular trajectory with 20cm radius. Determine the speed of the protons. (q=1.6×10 -¹⁹ C and

m=1.673×10 -²⁷ kg)

A closely wound 0.20m x 0.20m square coil of 100 turns is exposed to an external magnetic field of 0.74T that is perpendicular to the plane of the coil. The coil is then rotated for 10s until it makes 60 ̊ with the magnetic field. Find the average induced electromotive force during the 10s interval.

Two particles A and B are released from rest, having equal charges of -8x10^-6 C and initially separated from each other by 0.025 m. The masses of particle A and B are 6.25x10^-6 kg and 3.75x10^-6 kg respectively. Find the magnitude and initial accelerations of particle A and B.

A force of 5.78x10^-16N acts on an unknown particle moving at an angle of 90 degrees through a magnetic field. if the velocity of the particle is 5.65x 10^4 m/s and 3.20x10^-2T, how many elementary charges does it carry

Determine the electric field and the potential at any point in space produced by a spherical

crown where the internal radius is R1 and the external one R2, with a total charge Q, for the

following cases: (a) non conducting and an uniform charge distributed throughout the volume;

and (b) metallic and on electrostatic equilibrium. Particularize the results for a solid sphere with radius R

We have an isolated spherical conductor whose radius is R1 = 4 cm, and whose

potential is 9000 V referring to ground. After, it is surrounded with a concentric spherical

conducting layer, with inner radius R2 = 8 cm and exterior one R3 =10 cm, isolated and with

null total charge. Determine charges and potentials on the inner conductor, as well as the

conducting layer, for the following cases:

a. Inner conductor and conducting layer isolated.

b. If the conducting layer is connected to ground.

Determine the electric field produced on any point in space by a very long line

(infinite) charged with a uniform density λ