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(20%) Problem 1: A uniform electric field of magnitude E-28 N/C points along the

ID: 251730 • Letter: #

Question

(20%) Problem 1: A uniform electric field of magnitude E-28 N/C points along the x-axis. A circular loop of radius R = 17 cm is centered at the origin with the normal to the loop pointing = 65 degrees above the x-axis ©theexpertta.com 50% Part (a) Calculate the electric flux in units of Nm2/C that passes through the loop? Grade Summary Deductions Potential 0% 100% sinO Submissions Attempts remaining: 3 (5% per attempt) detailed view 78 9 cotan0 asinO acosO atanO acotan sinh0 cotanh0 0 END Degrees C) Radians VO BACKSPACE DELCLEAR Submit Hint I give up! Hints: 3% deduction per hint. Hints remaining: 2 Feedback: 3% deduction per feedback D 50% Part (b) To what angle in degrees relative to the x-axis should the normal of the loop be rotated so that the flux through the loop becomes 4)' = 0.49 NmyC? All content © 2015 Expert TA, LLC

Explanation / Answer

(a) Flux = EAcos(theta)=28*pi*0.085^2*cos65=0.269 Nm^2C^-1

(b) Now EAcos(theta)=0.49

  cos(theta)=0.49/(28*pi*0.085^2)=0.77

Theta =39.6 degree