I got a 3/10 on this. Which ones are wrong? And what are the correct answers? Th

Question

I got a 3/10 on this. Which ones are wrong? And what are the correct answers? Thanks!

L. Twu patallel cueat earrying wires will attruct each other it urreut run through the wis in opposite dizections Cuent un through the wins in the same diectio (e) The wins canmot attract each oths 2. How could the force eserted an a stright we that cauries curnnt due to Earth's magnetie field be minimiand? Align the wire perpendicular to Earth's inaguetie tield. Aligu the wire paralled to Euth' magneti fie (e) Aliga the at a 45 degree angle with Earth's magnets eld d) The Lorce canmout be minimiaed 3. Wlust ls the Hall effeet The creation of a potentiad differences the disancter o a eurreut carrying wire when plsend in a uetie (b) The evation of a potential diffeuc acnos the diameter of a euneat earrying wize whn placed in an electric e) The orce exated on a euent carrying wize whean plueed in a magutie tield. (d) The Lonce excated on a euteut carrying wire when pluend in m electrie field. What direetion does the magetic furce exeited on a straight curnst earring wire pol? The foree will always be parpendieular to the magaetie fiold and the wie. he torce will always he peapenxliculsa to the mguetic tield and parallel to the wie he toree will always be parild to the auetic field and perpendicular to the wine. (d) The loree will always be pardld to the maghetic field and tlhe wire. G. What is The tow of li (e) A dynnic, tame-varying eloetrie tield (d) The magetic fied produced by water pussing theough a coastricted pipe. 6. Whea is the torcue peodaced by an clectrie motoe at its peak? The toque produend by an eleetrie motor Is constast When the plane of the loop i pependicular to the wagetie fied e) When the plane of the loop makes a 40 dee ngle with the maguetie field (d) When the plane of the loop is parallel to the maguetie field. 7. Which od the following woold incease the torque peoduced on a coll of cunent earying wiall that ate H. A loop od wae eanying curest lies in the r - plane. A uniloetn magnetic field points in the + diroetion. What (a) the toaque will be o 9. If a current runs through a wire in the dircetion of E, and a magmetic field polnts in the dinetion of -. What direetion will the forcexerted on the wire point? (a) the force will be ao (b)? (d) i . a curent will the force exerted on the wire point? (a) the force will be a through a wie in the direction of F, and a magtie feld points in the direction of-i. What directio (a) i (8)-i

Explanation / Answer

The correct answer are as following

1.(b)

2.(b)

3.(a)

4.(a)

5.(a)

6.(d)

7.(a),(c)

8.(a)

9.(f)

10.(a)

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