Problem 4: A loop of wire with radius r0.045 m is in a magnetic field with magnitude B as shown in the figure. B changes from B,-0.45 T to B,-7.5 T inAt = 2.5 s at a constant rate. The resistance of the wire is R 8 Ω Randomized Variables r0.045 m B,-0.45T B2=7.5 T At- 2.5 s R=862 Part (a_Express the magnetic flux cp going through a loop of radius r assuming a constam magnetic field B. HOME 4 5 6 BACKSPACE CLEAR Submit Hint I give up! Hints: 1% deduction per hint. Hints remaining: 1 Feedback: 1% deduction per feedback Part (b) Express the magnetic flux change, Ф, in terms of B1, B2 and r. Part (c) Calculate the numerical value ofΔΦ in T.m Part (d) Express the magnitude of the average emf, ε, induced in the loop in terms of ΔΦ and Δ ▲ Part (e) Calculate the numerical value of the emf in V Part (f) Express the current induced in the loop, I, in terms ofe and kR
Problem 4: A loop of wire with radius r0.045 m is in a magnetic field with magnitude B as shown in the figure. B changes from B,-0.45 T to B,-7.5 T inAt = 2.5 s at a constant rate. The resistance of the wire is R 8 Ω Randomized Variables r0.045 m B,-0.45T B2=7.5 T At- 2.5 s R=862 Part (a_Express the magnetic flux cp going through a loop of radius r assuming a constam magnetic field B. HOME 4 5 6 BACKSPACE CLEAR Submit Hint I give up! Hints: 1% deduction per hint. Hints remaining: 1 Feedback: 1% deduction per feedback Part (b) Express the magnetic flux change, Ф, in terms of B1, B2 and r. Part (c) Calculate the numerical value ofΔΦ in T.m Part (d) Express the magnitude of the average emf, ε, induced in the loop in terms of ΔΦ and Δ ▲ Part (e) Calculate the numerical value of the emf in V Part (f) Express the current induced in the loop, I, in terms ofe and kR
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter30: Magnetic Fields And Forces
Section: Chapter Questions
Problem 75PQ
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