Physics Exam 2

Question 1

Value of K

Answer 1

1/(4*pi*epsilon not)

Question 2

Value of Eo

Answer 2

Question 3

Coulombs Law. Electrostatic force between two charges at rest

Answer 3

Question 4

Charge of an electron

Answer 4

1.6E-19

Question 5

Definition of electric field

Answer 5

Question 6

Electric Field due to a Point Charge

Answer 6

Question 7

Force on a Point charge in an electric field

Answer 7

Question 7

Gauss’ law. Net charge in a closed surface

Answer 7

Question 8

Equation for flux

Answer 8

Question 9

Electric field in terms of charge density and Eo

Answer 9

Question 10

Electric field at any point due to an infinite line charge

Answer 10

Question 11

Electric field due to an infinite nonconducting sheet

Answer 11

Question 12

electrical field outside a shell

Answer 12

Question 13

electrical field inside a uniform sphere

Answer 13

Question 14

potential energy difference in terms of Q and W

Answer 14

Question 15

electric potential in terms of U and Q

Answer 15

Question 16

Potential due to point charges

Answer 16

A positively charged particle produces a positive electric potential. A negatively charged particle produces a negative electric potential.

Question 17

Electric field in terms of Electric potential

Answer 17

Question 18

Electric Potential of a System of Point Charges

Answer 18

Question 19

Basic equation for capacitance

Answer 19

Question 20

Pico

Answer 20

E-12

Question 21

micro

Answer 21

E-6

Question 22

Nano

Answer 22

E-9

Question 23

Equation for a Parallel plate capacitor

Answer 23

Question 24

Cylindrical capacitor

Answer 24

Question 25

Equation for a Spherical Capacitor

Answer 25

Question 27

Capacitors in series must have the same

Answer 27

Q only

SERI Q

Question 28

Capacitors in parallel must have the same

Answer 28

V, potential difference

PAR V

Question 29

equivalence capacity for parallel C1 and C2

Answer 29

C1+C2

Question 30

equivalent capacitance for C1 and C2 in series

Answer 30

C1C2/ (C1+C2)

Question 31

What is Gauss’ law with the definition of flux included?

Answer 31

Question 33

What is the direction of an electric field?

Answer 33

Question 34

Electric field due to a dipole

Answer 34

p is the dipole moment and the direction of p is from the negative to the positive end of a dipole

Question 35

sign of Qenc and the direction of the net flux of a closed surface

Answer 35

If qenc is positive, the net flux is outward; if qenc is negative, the net flux is inward.

Question 36

What is the equation for work?

Answer 36

Question 37

Equation for Potential Difference in terms of electric field

Answer 37

Question 38

Potential due to a continuous chare distribution

Answer 38

Question 40

How can you find the potential energy when you have a charged particle a distance d, from an electric field?

Answer 40

U=Edq