Mastering Physics: Homework 9 Ch 33 Google Chrome https:// session.masteringphys

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Mastering Physics: Homework 9 Ch 33 Google Chrome https:// session.masteringphysics.com 44115560 PHY131, SPRING C 2015, iCOURSE Homework 9 Ch 33 Problem 33.37 Problem 33.37 Submit My Answers Give Up A 4.0-cm-diameter loop with resistance 0.102 around a 2.0-cm Correct diameter solenoid. The solenoid is 12cm long, has 100 turns and carries the current shown in the graph. A positive current is cw when seen from the left. Part B Find the current in the loop at t 1.5s. Express your answer to two significant figures and include the appropriate units. I 1.5 Fig Submit My ALI incorrect; Try Again; 3 attempts remaining Part C Find the current in the loop at t -2.5s. 4.0 2.0 Express your answer as an integer and include the appropriate units. I 2.5 o A My Answers Give Up Correct Sticky Notes Help I close previous l 11 of 15 next

Explanation / Answer

inductance of solenoid=mu*N^2*Area/length=3.3*10^(-5) H

then emf induced in the loop=L*dI/dt

at t=2.5, dI/dt=20/0.5=40

so emf=1.31 mV

so current=1.31/0.1=13.1 mA

=0.0131 A

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