Electricity and Magnetism Answers

Suppose the exact charge neutrality does not hold in a world and the electron has a charge 1%less in magnitude than the proton. Calculate the coulomb force acting between two blocks of iron each of mass 1kg separated by a distance of 1m. Number of protons in an iron atom=26 and 58kg of iron contains 6*10^26 atoms.

If a rectangular loop is placed near a straight current carrying wire the direction of current in the wire is?

The mass spectrometer is used to measure the mass of an ion. The initially stationary ion is accelerated by the electric field due to a potential difference P'and a uniform magnetic field is perpendicular to the path of the ion. A wide detector lines the bottom wall of the chamber, and the causes the lon to move in a semicircle and thus strike the detector. Suppose that B 80.0 mT, V 1000.0 V, and ions of charge 4 +1.6 x 10 C strike the detector at a point that lies at x = 1.6254 m. What is the mass m of the individual ions, in atomic mass units (1 u 1.6605 x 10 kg)?

Point P is located on the x-axis of a coordinate plane at x = 0.2 m.
Object A of charge -5e-9 C is located on the y-axis of a coordinate plane at y = 0.2 m.
Object B of charge 2e-9 C is located on the y-axis of a coordinate plane at y = -0.4 m.
Calculate the magnitude of the net electric field at point P due to objects A and B.

358.258 N ⁄ C
417.968 N ⁄ C
656.806 N ⁄ C
477.677 N ⁄ C
597.097 N ⁄ C

Point P is located on the x-axis of a coordinate plane at x = 0.1 m.
Object A of charge 1e-9 C is located on the y-axis of a coordinate plane at y = 0.2 m.
Object B of charge 3e-9 C is located on the y-axis of a coordinate plane at y = -0.5 m.
Calculate the direction (angle with respect to the positive x-axis) of the net electric field at point P due to objects A and B.

-27.096°
-25.996°
-28.196°
-30.396°
-29.296°

Point P is located at the origin of a coordinate plane.
Object A of charge 2e-9 C is located on the x-axis of a coordinate plane at x = 0.4 m.
Object B of charge -4e-9 C is located on the y-axis of a coordinate plane at y = 0.5 m.
Calculate the direction (angle formed with the positive x-axis) of the net
electric field at point P due to objects A and B.

-46.801°
153.598°
-52.001°
127.999°
115.199°

Point P is located at the origin of a coordinate plane. Object A of charge -5e-9 C is located on the x-axis of a coordinate plane at x = 0.1 m. Object B of charge -2e-9 C is located on the y-axis of a coordinate plane at y = 0.2 m.Calculate the magnitude of the net electric field at point P due to objects A and B.

4522.444 N ⁄ C
5879.177 N ⁄ C
4070.2 N ⁄ C
2713.466 N ⁄ C
5426.933 N ⁄ C

Object A of charge -2e-9 C is located on the x-axis at x = 0.4 m. Object B of charge 1e-9 C is located on the x-axis at x = 1 m. Point P of is located on the x-axis at x = 1.1 m. Determine the magnitude and direction of the net electric field point P by objects A and B.

861.265 N ⁄ C West
864.265 N ⁄ C East
863.265 N ⁄ C East
864.265 N ⁄ C West
863.265 N ⁄ C West

Two metal plates are squares of 12 cm by 12 cm, separated by 1.0 mm of air. Wires connected to each plate are also connected to a 9.0 V battery. After a long time, the battery is disconnected and the two plates are arranged to be perpendicular instead of parallel and almost touching each other along one edge (an “L” shape). A proton (charge +1.6 x 10-19 C, mass 1.67 x 10-27 kg) is released from rest from the middle of the positive plate. When and where does the proton hit the negative plate?

the electron of hydrogen atom rotates in a circular orbit with radius 0.53 A with velocity 2.2*10 power 6 m/s Determine the intensity occurred given charge of electron = 1.6*10 power -19

4 point charge of +Q each are located at corners of square, what point charge to be kept at center of the square so that the resulted force acting on any charge which are located at the corners of square is 0?

If 1mC charge is located at origin then the force on that charge will be .........?