Imagine, the north pole of the magnet is the positive side. try and PREDICT, how the negative electrons in the metal would react to the electric force of the positive pole of the magnet?

A cyclotron (figure) designed to accelerate protons has an outer radius of 0.321 m. The protons are emitted nearly at rest from a source at the center and are accelerated through 542 V each time they cross the gap between the dees. The dees are between the poles of an electromagnet where the field is 0.768 T. The black, dashed, curved lines Alternating AV гергемеnt the path of the particles. After being accelerated, the particles exit here. North pole of magnet (a) Find the cyclotron frequency for the protons in this cyclotron. rad/s (b) Find the speed at which protons exit the cyclotron. m/s (c) Find their maximum kinetic energy. ev (d) How many revolutions does a proton make in the cyclotron? revolutions (e) For what time interval does the proton accelerate?

The charges moving inside a conductor experience a magnetic force if the conductor is placed in a magnetic field, resulting in a potential deference called Hall Voltage. If the direction of B (into the plane of the paper) and / (towards up) are as shown in the figure, In which face of the conductor does the electron tend to accumulate due to this effect.  a) Face 1 b) Face 2 c) Face 3 d) Face 4

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