What is the maximum force on an aluminum rod with a 0.100-μC charge that you pass between the poles of a 1.50-T permanent magnet at a speed of 5.00 m/s? In what direction is the force?

i. Find the direction of electric field, if any, at points P and Q due to the two charges as shown (two separate questions, spacings are uniform) -q Q I ii. Find the direction of magnetic force on electron at point R, and the direction of force on a proton at point S (two separate questions). Both the electron and proton has initial velocity upward (assume infinitely long current carrying wires). Avel S +q Р P vel e

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Starting from rest, an electron is accelerated through a region between two oppositely charged plates, as shown in Figure 1. The distance between the plates is 10 cm and the magnitude of the potential difference between them is 100 V. Immediately after exiting the region with the uniform electric field, the electron enters a region with a uniform magnetic field of 0.85 T, directed into the page. (a) Calculate the magnitude of the electric force on the electron. (b) Calculate the work done by the electric force on the electron. (c) Determine the electron's speed when it enters the magnetic field. (d) Determine the magnitude and direction of the magnetic force on the electron when it enters the magnetic field. (e) Suppose that the experiment was repeated with the locations of the positive and negative plates switched, and the electron was replaced with a proton, but nothing else was changed. Calculate R,/R., the ratio of the radius of the proton's path in the magnetic field (R,) to that…

A wire has a current of 15 A going to the right. What is the B field and its direction 0.5 m below the wire? What is the force and direction on a proton traveling 150 m/s to the right at this point?

An electron travelling at 5 x 106 m/s at right angles to a magnetic field experiences a magnetic force of 2 x 10–14 N. What is the strength of the magnetic field?.