Question

please answer both of them within clear hand writing

for question 12 the wrong equation already given , you just have to specify where and why the derivatives is wrong

for question 13 the equation( 1) is already given you just have to do the integral

please answer quickly

points) is wrong. 13. Check the validity of the above Eq. () by considering a simple circular loop. (5 points) Hint: Work out the cross productrxdE first, using di +/2 do r rfcos,sin,0 dndo-sin.cos,0) Then, the integral frx di should be easy. 1:28 PM O Type here to search FNG 6/4/2019 12. On Thursday, we have explained in the leclure thal the fullowing derivation for a tunue acting on a current loop is wrong: xd -2/A xB where we hve nade use of xd- 2A n the last slep, Specily where and why the derivation wrong. (5 points)

Answer 1

Anscoon: Given data 19 7 - r (cop,Sinp ,0) =(rcoxp3+rsingj) 7xd rcolg sin o Pdo A=T2) 12) Torque T 7x F T (5xdF - XC1( dēxē) CdexB) abtothat yx(IdixB) Deneed-to do I Che migtaKe 13 ig The mistake cS Scanned with CamScanner