The uniform 33.0 mT magnetic field in the figure points in the positive z-direction. An electron enters the region of magnetic field with a speed of 5.00 ×106 m/s and at an angle of 30° above the xy-plane. (Figure 1) Figure X B 000 30° y 1 of 1 ▼ Part A Find the radius r of the electron's spiral trajectory. Express your answer with the appropriate units. Value Submit Part B μA Submit Value Provide Feedback Request Answer Find the pitch p of the electron's spiral trajectory. Express your answer with the appropriate units. HÅ Units Units Request Answer WWW ? ?

R R|2 1: d A single current-carrying circular loop of radius R=6.4 cm is placed next to a long straight wire as shown in Figure. A current i1 = -7.6 A is passing through the wire towards right. At a certain moment an electron is moving at a velocity v = -570.0 j m/s toward the centre of the circular wire. At the instant shown in figure, the electron's distance from the wire is d = 8.5 cm. The z axis points out of the page in the coordinate system shown in the figure which is represented by the circle with a dot inside. a)Compute the magnitude of the magnetic field at the centre c due to the current passing through the straight wire. Magnitude of magnetic field at point c

A square loop can freely spin about one of its horizontal segments, see the picture below. The loop is placed in a vertical uniform magnetic field of magnitude B = 0.25 T. Find the current in the loop if it makes an angle of 20° relative to the vertical (the line of magnetic field). The mass of the loop m = 20 g and the size of the loop a = 12 cm. B a The current in the loop, I = g Units Select an answer ✓ Question Help: Message instructor Post to forum

A 3.0 uC charge moves horizontally due east with a speed of 4.0*10^5 m/s. A magnetic field of 1.2 T is due north at an angle of 30 degrees below horizonal direction. 1. What is the magnitude of the force on the charge?  a. 1.00 N b. 1.44 N c. 0.72 N  d. 1.25 N 2. What is the direction of the force on the charge? a. Into the earth  b. Out of the earth c. North 60 degrees above horizontal d. South 30 degrees below horizontal