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Clicker Question #0. Which 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. B. A. C.
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Clicker Question #0 Which 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 B A C
Clicker Question #0 Which 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 B A 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 is ALWAYS zero
Clicker Question #1 What 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 B a b A C I
Clicker Question #2 At 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 D B C B A A C
Clicker Question #3 What is direction of the NET B field at point P due to equal magnitude currents in all 4 wires? down B) up C) left D) right E) None of the above B A C
Clicker Question #4 How many paths have zero enclosed current? 0 B) 1 C) 2 D) 3 E) 4 B A C
B field from Solenoids B A C