Homework Statement
https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-prn1/553004_1959186995753_1725123128_934768_456680196_n.jpg
In case the words are too small:
I2= 6.61I1
The net magnetic field at center of loop is 0.
I'm looking for the radius of the loop
Homework Equations
for...
Homework Statement
For the circuit shown in the figure below, calculate the current I4 through the 1.94Ω resistor.
As shown, R1 = 4.05Ω, R2 = 8.11Ω, R3 = 6.17Ω, R4 = 1.94Ω, I1 = 2.97A and E1 = 12V
Homework Equations
V=IR
ƩI in a junction = ƩI out of a junction
ƩV in a loop = 0
The...
Ok, so
E1= http://www.texify.com/img/%5CLARGE%5C%21%288.987E9N/C%2A8.36E-6C%29/.0274%5E2m.gif
E1= 1.0007E8 N/C
E2= http://www.texify.com/img/%5CLARGE%5C%21%288.987E9N/C%2A20.2E-6C%29/.0905%5E2m.gif
E2= -2.216E-7 N/C
And Enet = E1+E2
Enet= 7.79E7N/C
But that wasn't right.
Am I correct using...
I think the mC meaning microC is just my weird homework interface.
When I calculate the individual electric fields, is q always positive? I know it is in Coulomb's Law calculations.
Homework Statement
Two charges are placed on the x axis. One charge (q1 = +8.36mC (microC)) is at x1 = +2.74cm and the other (q2 = -20.2mC (microC)) is at x1 = +9.05cm. Calculate the net electric field at x = 0cm.
Homework Equations
E= kq/r^2
The Attempt at a Solution
I tried...