Download week10-ampere

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
B
D) Mike Judge
E) Stephen Billenburg
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
B
D) Mike Judge – CORRECT!
E) Stephen Billenburg – creator of SpongeBob SquarePants – Marine biologist
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
B
D) a: into the page b: into the page
E) None of the above
a
b
A
I
C
B field from long, straight wire
Clicker Question #2
At which point(s) in the diagram is the NET B field locally pointing INTO the page?
A) A
B) B
D
C) C
B
D) D
E) None of the above
A
C
B
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?
A) 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?
A) 0
B) 1
C) 2
D) 3
E) 4
B
A
C
B field from Solenoids
B
A
C