Two line conductors are connected to a semi-circle with radius a, as shown below. If the current has magnitude I, what is the magnitude of the resulting magnetic field at the center? a 45° 45°

1. A magnetic field has a magnitude of 1.50 × 10-³ T, and an electric field has a magnitude of 4.00 × 10³ N/C. Both fields -3 point in the same direction. A positive 2.5 µC charge moves at a speed of 2.50 × 106 m/s in a perpendicular to both fields. Determine the magnitude of the net force that acts on the charge. N ssfánection that is 0 ssf60 sf60 ss 50 ssf6 €60 ssf60 ss

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A washer with inner diameter 5.0 cm is carried in your pocket as you walk directly north according to your magnetic compass. Assume the normal to the washer's plane is exactly horizontal, pointing toward magnetic north. The Earth's magnetic field strength is 0.056 mT. If the magnetic flux through the washer's opening is 36 nTm2, what is the angle below local horizontal that the magnetic field vector points?

A charged particle moves through a velocity selector at constant velocity. The velocity selector is configured with "crossed" electric and magnetic fields of magnitude E = 1.50 x 104 N/C and B = 0.4 T. %3D Hint a. What is the velocity of the charged particle? Velocity of the charged particle is x 104 m/s. b. When the electric field is turned off, the charged particle travels in a circular path of radius 6 mm, as it travels through the magnetic field (still at B = 0.4 T). What is the mass-to-charge ratio of the particle? Hint for (b) Mass-to-charge ratio of the part is kg/C. (Use the "E" notation to enter your answer in scientific notation. For example, to enter 3.14 × 10´ 12".) - 12 enter "3.14E-

A long cylindrical conductor of radius a has two cylindrical cavities diameter a along its entire length, as shown in figure. An I current is directed out of the page and has a uniform value across the entire cross-section of the conductor. Determine the magnitude and direction of the magnetic field based on  μ0, I, r and a at a) point P1 and b) at point P2.

magnetic fields Problem 19:   Consider the two wires in the figure, running at a right angle to each other. The wires carry the same current I = 6.5 mA, in the directions shown. The distances shown are d1 = 31 cm and d2 = 11.5 cm.   Part (a)  What is the magnitude of the magnetic field, in tesla, at point A?  Part (b)  What is the magnitude of the magnetic field, in tesla, at point B?  Part (c)  What is the magnitude of the magnetic field, in tesla, at point C?