Chapter 5- Electrostatics And Magnetism Flashcards Preview

MCAT Physics And Math > Chapter 5- Electrostatics And Magnetism > Flashcards

Flashcards in Chapter 5- Electrostatics And Magnetism Deck (16)
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1

Coulomb's law

Fe = kq1q2 / r^2

k- 8.99 x 10^9

2

Magnitude of electric field

E = Fe/q = kQ/r^2

3

Electrical potential energy

U= kQq/r

+ if two charges are the same and - if they are different

4

Electrical potential

U/q (ratio of magnitude of charge and its electrical potential energy) -measured in volts

5

Electrical potential with no test charge present

V= kQ/r

6

🔺Voltage

Wab/ q (Wab is work needed to move a test charge q)
Potential difference between two points at different points

7

Electric potential

V= (kqd/r^2) cos

8

Dipole moment (p)

p= qd
Production of charge and separation distance

9

Net torque on a dipole

pEsin

10

SI unit for magnetic field strength

Tesla (T)

Gauss may also be used. 1T = 10^4 gauss

11

Order of magnetic strength

1. Ferromagnetic (lots of unpaired electrons)
2. Paramagnetic(unpaired electrons)
3. Diamagnetic (no unpaired electrons)

12

Magnetic field produced by straight current carrying wire

B= u*I/2pir

u*- 4pi x 10^-7

13

Magnetic field for center of circular loop of current carrying wire

B= u*I/2r

14

Lorentz force

Sum of both electrostatic and magnetic forces acting on a charge

15

Magnetic force exerted on a charge moving in a magnetic field

FB= qvB sin

B- magnitude of magnetic field

16

Magnitude of force created by external magnetic field for a straight wire

FB= ILB sin