A flexible circular loop 6.7 cm in diameter lies in a magnetic field with magnit

Question

A flexible circular loop 6.7 cm in diameter lies in a magnetic field with magnitude 0.920 T, directed into the plane of the page in the figure (Figure 1) . The loop is pulled at the points indicated by the arrows, forming a loop of zero area in 0.250 s.

(A) Find the average induced emf in the circuit.

(B) The direction of the current in R is from point a to point b. Explain the reasoning behind why this is.

I will award "Lifesaver" to whoever can fully explain both parts of this question to me! I greatly appreciate your help!!

Explanation / Answer

A)

emf = 0.92*3.14*0.067^2/(0.25*4) = 0.013 V

B)

direction cannot be specified if the figure is not given... Would have loved to help you out though....

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.