In which of the cases given below a uniform magnetic field cannot exert a magnetic force on a particle? I) The particle is charged II) The particle's movement is perpendicular to the magnetic field III) The particle is at rest IM An electric field is acting on a particle O A) III and IV O B) Il and IV O O I and II O D) I and II O E) II

In which of the cases given below a uniform magnetic field cannot exert a magnetic force on a particle? I) The particle is charged II) The particle's movement is perpendicular to the magnetic field III) The particle is at rest IM An electric field is acting on a particle O A) III and IV O B) Il and IV O O I and II O D) I and II O E) II

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter8: Basic Electric Motors

Section: Chapter Questions

Problem 3RQ

See similar textbooks

Similar questions

A rectangular coil of wire has a length of 3 cm and a width of 4 cm. It is in a 0.004 T magnetic field. What is the magnetic flux through the coil if the face of the coil is parallel to the B-field lines? What is the flux if the angle between the face of the coil and the magnetic field is 75°?
What is a magnetic field? a) it is the space araund a magnet, or the space in whic magnetic forces act, b) it is the magnetic force which has definite direction at all points along a curved line from the north to south pole, c) it is the ability of a magnetic material to be magnetized easily, d) none of above Wihch of the following true with regards to magnetic materials. A) like polarities repel, B) unlike polarities attract, C) both a and b, D) none According to weber is theory of magnetism, a magnetic material_____. A) consust of one large single magnetic molecule, B) is made up from many tiny magnetic molecules, C) consist of one single nonmagnetic molecule, D) none
13 - Which of the following is true about the magnetic field in the Biot-Savart law?I. is inversely proportional to r.II. It is inversely proportional to r2.III. It is directly proportional to the current. A) Yalnız I B) II ve III C) Yalnız III D) I ve III E) Yalnız II
17. What type of device consists of a coil with a moveable iron core.. 18. What will happen when an inductor's magnetic field collapses the voltage will? 19. What is the inductance of 5H and 100 milli H coil connected in parallel. 20. It is the magnetic field generated around a conductor when a current passes through it.
(3.4)The length of a magnetic circuit in a moving iron instrument is 300mm. The coil around the soft-iron core has 360 turns and takes a current of 1.75 A. The core is square in section with sides of 20 mm. Take the relative permeability of soft iron as 1100. 3.4.1) Determine the magnetomotive force in the core 3.4.2)Determine the field strength 3.4.3) Determine the total flux
A proton enters a magnetic field with a velocity of 2 x 10° m/s in the +x direction. A) What is the flux density in tesla if the force on the proton is 2.4 x 10-12 B) What is the direction of the force if magnetic field is directed in the -Z axis. C) What will be the force direction if the proton were replaced with an electron.
A coil of copper wire is moved parallel to a uniform magnetic field. As a result, the induced electromotive force (e.m.f) will A. O depend on the intensity of the magnetic field B. C. D. O O O depend on the velocity be zero be infinite in the coil.
The chart applies to a particular magnetic field system. The flux linkage is in weber-turns and the current is in amperes. X1 and X2 each denote some specific value of a distance parameter X in the system. The system state point has moved from point a to point b. Assume that the motion is very, very slow. 1. Determine the input energy 2. Determine the change in field energy 3. Determine the energy output of the system 4. What is the inductance of the system at point b
An electromagnet shown below has a cross section area of 10 cm2 with a mean length of iron path of 100cm and mean length of airgap is 0.4cm . It is excited by a coil of 1000 turns of conductor windings. When a current of 1A is provided to the coil and the relative permeability of iron is 1300, then find the magnetic flux in the circuit. Select one: Oa. 1.25Wb O b. None of these Oc.0.00027Wb O d. 027W.
Two long parallel wires are 4 cm apart and carry Currents Of 2.A and A in the same direction a) Solve for the magnetic field b) Compute the force between the wires per meter of wire length
Which of the following configurations can be used to apply Ampere's circuital law ? f the length of a solenoid is doubled but the number of turns is halved, the magnetic field inside will Ɔ cut by 1/2 Ɔ cut by 1/4 Ɔ Quadrable Ɔ Double A B None of the above C D ... ... O Only A Only A & B & C .... .... ... . Only D O All of them None of the above
The existence of a magnetic field can always be traced to: a. a source of voltage b. the geometric field c. the solar magnetic field d. the motion of electrically charged particles