Consider the circuit below that contains an ideal EMF = 10 [V] and the following

Question

Consider the circuit below that contains an ideal EMF = 10 [V] and the following resistors: R, = 10 [Ohm] R2 = 12 [Ohm]. R3 = 8 [Ohm] and R4 = 5 [Ohm]. What is die equivalent resistance of the circus? At what rate does the EMF provide energy to the circuit? In other words, what is the power dissipated in the circuit Whit is the current flowing through R ? What is the potential difference across R ? Two long, thin straight wires carry currents of 10 [A] in the same direction as shown in the figure below. The wires are separated by a distance of 0.12 [m]. Calculate the strength of the magnetic field created by current A at the location of wire B. What is the direction of the magnetic field you found in part (a)? Calculate the force on one meter length of wire B due to the current in wire A. This allows you to calculate a finite force even if the wires were taken to be infinitely long. You should provide both the magnitude and direction of the force. By using either Newton's laws of motion or direct calculation, what is the force on one meter long length of wore A due to the current m wire B?

Explanation / Answer

Okay, I don't see any diagram for the first question. (are the resistors in series, parallel or some other order--post the picture or give a link to the diagram in the comments and I'll post the answer)

Prob 2:
a) B=oi/2r

      =2x10-7*10/0.12=1.67x10-5 T

b) into the paper

c)F=BiL

therefore F/l=Bi=1.67x10-5*10=1.67x10-4N/m

d) This is identical to (c) because the distance between the 2 wires are constant and if you were to look at the variables, F/L=Bi2=(oi1/2r)*i2

which has both i1 and i2, so the force on B=1.67x10-4N/m

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