Electricity and Magnetism Answers

Calculate the electric field strength at a point in space where a proton

experience an acceleration on 1.8 million “g’s”.

1- Find electric field intensity due to dipole of dipole moment 4.4x10^-19C-m at a point 30nm away along bisector axis?

2- A point charge of 1x 10^-6C is at centre of Gaussian surface with cubical shape 1m on edge. Find flux through surface? 

3- Consider a point charge 2C, what is the radius of equipotential surface having potential 20V? 

Explain electrostatic potential

What is electric field due toinfinite wire of lambda charge density

Alpha particles are made of two protons and two neutrons.

mp=1.673x10^-27  kg;mn =1.675x10^-27 kg;qe =1.60x10^-19C

-Find the electric force acting on an alpha particle in a vertical electric field of 7.00 x 10^2 N/C.

-What is the acceleration of this alpha particle?

A -2.00 microC point charge of mass 8.00 g is suspended on a string and placed in a horizontal electric field. The mass is in equilibrium when the string forms a 45 angle with the vertical.

1. Find the electric force on the charge in this field

2.Find the strength of the electric field.

3.How many electrons are there in 10.00 C? How many electrons are there in

15.00 microC?

A charge is released from rest in a

uniform electric field with a magnitude of 4.5 × 10^3 V/m. The charge moves 350 cm as aresult. What is the potential difference between the charge’s initial and final positions?

A capacitor has a capacitance of 4.50 μF. What charge would be stored if the potential difference is 6V?

A charge is released from rest in a

uniform electric field with a magnitude of 4.5 × 103 V/m. The charge moves 350 cm as aresult. What is the potential difference between the charge’s initial and final positions?

Three charged particles are placed so that each particle is at the corner of a triangle that lies in the x-y plane. The charge at the origin is –3.0 μC, the charge at x = 6.0 cm on the x-axis is+4.0 μC, and the charge at y = 4.0 cm on the y-axis is +2.5 μC. What is the net electric force on the –3.0 μC charge?