# Maple TA Quiz 18-2

## Maple TA Quiz 18-2

Question 1: Rearrange the equation F=I*l*B*sin0. Solve by plugging into the equation I=F/(B*l*sin0).

I = Current
l = Wire Length
B = Magnetic Field
F = Magnetic Force on the Wire
0 = Angle made with the magnetic field (and thereby paper plane - horizonal positive axis)

helping
Guest

## Re: Maple TA Quiz 18-2

Question 2: Solve by plugging into the equation t=I*A*B*sin0 and then multiplying the answer by 10 (since there are ten wire loops, not only one). Don't forget to convert cm^2 to standard units (1cm^2=.0001m^2).

t = Torque
I = Current
B = Magnetic Field
A = Cross Sectional Area of one of the Wire Loops
0 = Angle made with the magnetic field (horizonal positive axis)

helping
Guest

## Re: Maple TA Quiz 18-2

Question 3: Rearrange the equation B=2*pi*k(prime)*(I/r). Solve by plugging into the equation r=(2*pi*k(prime)*I)/B.

I = Current
B = Magnetic Field
r = Radius of the Loop
k(prime) = 10^-7 (constant)

helping
Guest

## Re: Maple TA Quiz 18-2

Question 4: Solve by plugging into the equation B=4*pi*k(prime)*I*n. n is calculated by dividing the number of turns by the length (N/l). Don't forget to convert cm to standard units (1cm = .01m).

I = Current
l = Solenoid Length
N = # of Turns
k(prime) = 10^-7 (constant)
n = # of Turns Per Unit Length
B = Magnetic Field inside the Solenoid

helping
Guest

## Re: Maple TA Quiz 18-2

Helping you are amazing!!! THANK YOU!

sck105
Guest

## Maple 18_2

unfortunately, i think they might have changed the quiz on us... my quiz is actually computational... and not at all like the posted help.

For Example my Question 1 reads:

A current carrying 16.63 cm long wire lies in the paper plane. The current direction makes an angle of 54.55o with a 0.15 T magnetic field which lies in the paper plane and points along the horizontal positive x-axis. What is the current when the magnetic force on the wire is 0.03026 N (see sheet 15) ? Indicate with a positive (negative) sign whether the magnetic force lies in the (is perpendicular to) the paper plane.[b]

phygirl
Guest

## Re: Maple TA Quiz 18-2

THank u soo soo much!!!! =D

thnks!
Guest

## question number 4

I can't seem to get the correct answer to number 4, although I am doing it the exact way as posted. Does anything else have to be converted besides meters?

Stef
Guest

## Re: Maple TA Quiz 18-2

none of these are working for me

user
Guest

## Re: Maple TA Quiz 18-2

for some reasons none of these formulas posted are working for me.

phent
Guest

## Re: Maple TA Quiz 18-2

Thanx alot helping!!!

Guest 87
Guest

## Re: Maple TA Quiz 18-2

for some reason its not working for me either 18_2#3 , is there this k prime or ? causing it could someone shed some light here

gr8luck

Posts : 5
Join date : 2008-09-18

## Re: Maple TA Quiz 18-2

The reason they are not working for you is because your in the wrong mode....make sure your calculator is set to degrees NOT radian!

Duh!
Guest

## Re: Maple TA Quiz 18-2

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