Magnetic Force on moving charges
1) Thumb - direction of moving charge (Left - Right +)
3) 4 fingers
- Flux Direction 4) Palm - direction of PUSH (force) on charge
Ex 1) Direction?
Left
Out of page
Force up
Force into page
Answer: Into or Out of the page?
Out of Page
Magnetic force is maximum
Magnetic force = 0
... parallel to field
Force on a charge
1. Fmag = Bqvsinq q is angle between 90 max, 0 degrees F = 0
B - flux density of magnetic field (strength) Teslas (T) q - charge (C)
v - velocity (m/s)
Ex) Charge shot in field, speed and KE not changed. W=0 If perpendicular, charge will move in a circle
Bqv = mv2/r
Bq = mv/r
r = mv/Bq
2) c
3) d
4) d
5) a
Handout p. 10) 36
Enrichment
Warning: Doing this to your home TV
ŠTony Mangiacapre.,
- All Rights Reserved [Home]
Established 1995 |
|||