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Lecture: 27 (iq25)

1. Magnetic force: Force=source x external field.

o Circular motion: frequency is independent of v.

o Torque (Sec. 21.7): Torque is proportional to dipole moment of the current loop.

2. Force due to simultaneous presence of E and B. (Lorenz force)

3. Velocity selector.

4. Mass spectrometer

5. Hall effect: Hall current and Hall voltage.

Announcement:

Reminder: Ch21-h1 is due today (3/26)

Ch21-h2 is due tomorrow (3/27)

Change of TA session room for Wed 6-7 session

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TA: Chinmoy Bhattacharjee
LA: Brandon Crosbie & Daniel Joh.

Present Location : JES A307A

From next Wednesday (28th March), we will meet at BEN 1.122 for the rest of the semester.

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