Wednesday
April 16, 2014

Homework Help: Physics

Posted by Phy on Friday, April 5, 2013 at 11:53pm.

(a) In the diagram above the small semi-circle in the wire above R_1 indicates that it is not in contact with the horizontal wire which it appears to intersect due to the 2-dimensional projection. Additionally, the horizontal wire is continuous, not broken. Calculate |V_1| in terms of the emf \mathcal\epsilon,R_1,R_2 (enter epsilon for \epsilon)

b)Calculate |V_2| in terms of the emf \mathcal\epsilon,R_1,R_2 (enter epsilon for \epsilon)

c)Express |V_1/V_2| in terms of R_1 and R_2

Now wrap that same wire not once around the circuit but 100 times before you connect it again to the D-side. Without realizing it, in doing so you have been building some kind of a transformer (we will discuss transformers later in the course).
d) Calculate |V_1| in terms of the 1 loop emf \mathcal\epsilon,R_1,R_2 (enter epsilon for \epsilon).

e) Calculate |V_2| in terms of the 1 loop emf \mathcal\epsilon,R_1,R_2 (enter epsilon for \epsilon).

f) Express |V_1/V_2| in terms of R_1 and R_2

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