ms/mod/ibis/view.php?id=523 si as Jump to urgh-PHYS 0111-Spring18- BROCCIO Activ

Question

ms/mod/ibis/view.php?id=523 si as Jump to urgh-PHYS 0111-Spring18- BROCCIO Activities and Due Dates Reading Checkpoint 20 /26/2018 10:00 AM°/100 Calculator tion 1 of 5 Sapling Learning this question hás been customized by Marteo Broccio at University of Pitsburgh Which of these statements concerning induced current is correct? O By induced current, we trivially mean the current produced by any source of emf 0 A changing magnetic field perpendicular to a loop of wire produces a current in that loop. O A changing electric field can produce a magnetic current in a loop of wire. A changing magnetic field parallel to a piece of wire produces a current in that wire. A constant magnetic field perpendicular to a wire can induce a current in that wire. O

Explanation / Answer

induced current is produced to oppose the change in magnetic flux.

and magnetic flux = B.A or B A cos(theta)

flux change when field, area or their orientation .

Ans: A changing magnetic field perpendicular to the loop of wire produces a current in the loop.

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