Clicker Question #0Which famous physicist is responsible for the invention of cartoon characters Beavis and Butthead , as well as King of the Hill (from MTV fame)?A) Albert Einstein

B) Matt Groening

C) Sheldon Cooper

D) Mike Judge

E) Stephen Billenburg

A

B

C

Clicker Question #0Which famous physicist is responsible for the invention of cartoon characters Beavis and Butthead , as well as King of the Hill (from MTV fame)?A) Albert Einstein – E=Mc2 , Relativity, Brownian motion, etc. etc.

B) Matt Groening – Creator of The Simpsons – (liberal arts major)

C) Sheldon Cooper – Fictional character on Big Band Theory

D) Mike Judge – CORRECT!

E) Stephen Billenburg – creator of SpongeBob SquarePants – Marine biologist

A

B

C

Calculate flux through closed surface

Small magnetic material such as found in compass can indicate local direction of magnetic field

Magnetic Flux through CLOSED surface isALWAYS zero

Clicker Question #1What is direction of the magnetic field at points a and b due to the current in the segment of wire?A) a: Out of the page b: into the page

B) a: downward b: upward

C) a: left b: right

D) a: into the page b: into the page

E) None of the above

A

B

CI

a b

B field from long, straight wire

Clicker Question #2At which point(s) in the diagram is the NET B field locally pointing INTO the page?A) A

B) B

C) C

D) D

E) None of the above

A

B

C

A BC

D

Clicker Question #3What is direction of the NET B field at point P due to equal magnitude currents in all 4 wires?A) downB) upC) leftD) rightE) None of the above

A

B

C

Clicker Question #4How many paths have zero enclosed current?A) 0B) 1C) 2D) 3E) 4

A

B

C

B field from Solenoids

A

B

C