A negatively charged particle enters from the left through a magnetic field of magnitude 6.0x10-6 T directed into the page. What is the magnitude and direction of the force if the magnitude of its velocity is 2.0x10$ m/s?
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- 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°?1. What is the electrostatic force of attraction between a -5 x 10°C charge and a 3 x 106C charge if they are separated by a distance of 3 meters (m)? 2i bo vorn asvo di no sg sthatdorW.neio dose of 1eaob ou bor _N. The force of attraction between the given charges is approximately28 The electromagnet of Figure P13.28 has reluctance given by R(x) = 7 × 108(0.002 + x) H¬!, where x is the length of the variable gap in meters. The coil has 980 turns and 30-2 resistance. For an applied voltage of 120 V DC, find
- 1/4 of a circle of radius R carrying current i is given in the figure. µWhat is the magnetic field at point O, the center of the circle? 1/4R 1/6R V/R V/8R 1/2RHow many ampere-turn are required to produce a field intensity of 4000 Ampere-turn/m in a magnetic circuit of length 4 mm ?ххх ххх X X X X X X X X x x X 1- ххх ххх - ххх ххх хххх хх What is the initial direction of the deflection of the charged particle as it enters the magnetic field shown in the figure? A) no deflection B) up (top of the page) O C) out of the page O D) down (bottom of the page) O E) into the page
- 3- A magnetic core with an air gap is shown in below Figure. The depth of the core is 3 cm, the length of the air gap in the core is 4 cm, and the number of turns on the coil is 100. How much current is required to produce total flux of 0.00052 Weber? (H= 2000, Ho=4.n107). 6 cm 20 cm N = 100 4 cm = lg 6 cm 6 cm 18 cm 12 cm 18 cm 6 ст Depth = 3 cmIn which of the cases given below a uniform magnetic field cannot exert a magnetic force on a particle? I) The particle is charged I) The particle's movement is perpendicular to the magnetic field III) The particle is at rest IV) An electric field is acting on a particle 18- O A) III and IV O B) Il and IV O ) Tand II O D) I and II O E) IIWhich 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
- хх X X X ххх ххх ххх ххх 14 - x x x x x X ххх ххх x x x x x xWhat is the initial direction of the deflection of the charged particle as it enters the magnetic field shown in the figure? A) no deflection O B) into the page C) down (bottom of the page) O D) up (top of the page) out of the pageA current path of the shape shown in the figure produces a magnetic field at P, the center of the arc. If the arc subtends an angle of 30 ° and the radius of the arc is 0.600 m, what are the magnitude and direction of the field produced at P if the currents are 3A?A wire is shown in the figure below that is moving in the presence of a magnetic field. With the information given in the figure, determine the magnitude and 45° X. direction of the induced voltage in the wire. XV = 10 m/s 1 = 0.25 m Activate Windows B = 0.2 T, into the page Go to Settings to activate Wind XE X