Class Management Help Chapter 23 A Begin Date: 319l magnetic field with 5: A loo
ID: 1602065 • Letter: C
Question
Class Management Help Chapter 23 A Begin Date: 319l magnetic field with 5: A loop of wire with radius r 0.12 m is in a magnitude B as shown in the graph. B changes from BI 0A3T to B2 75Tin 4 3-5 s at a constant rate. Randomized Variables r 0.12 m 0.43 T B2 7.5 T 4t 3.5 s (Otheexpertta.com 20% Part (a) Express the magnetic flux going through a loop of radius r assuming a constant magnetic field B. Grade Summary Potential 100% 7 8 9 Attempts remaining: 8 4 5 6 (0% per attempt) give up! Hints: 09 deduction per hint. Hints remaining: 2 Feedback: deduction per feedback 20% Part (b) Express the change in the magnetic flux going through this loop, 4 ,in terms of Bi,B2 and r. 20% Part (c) Calculate the numerical value of 4 in T.m2 20% Part (d) Express the magnitude of the average induced electric field, E, induced in the loop in terms of 4b, r and st. 20% Part (e) Calculate the numerical value of E in NC. All content 2017 Expen TA LLCExplanation / Answer
a] flux phi = B*area = B*pi r^2
b] change in flux, delta phi = [B2-B1]*pi r^2
c] delta phi = [7.5-0.43]*pi*0.12^2 = 0.3198 Tm^2
d] E = [delta phi/delta t]/ [2 pi r]
e] E = [ 0.3198/3.5]/ [2 pi *0.12]
= 0.1212 N/C