A conducting rod with a length of 25 cm is placed on a U-shaped metal wire that

Question

A conducting rod with a length of 25 cm is placed on a U-shaped metal wire that has a resistance R of 8.0 ? as shown in the figure. The wire and the rod are placed in the plane of the paper. A constant magnetic field of strength 0.40 T is applied perpendicular into the paper. An applied force moves the rod to the right with a constant speed of 6.0 m/s. What is the magnitude and direction of the induced current in the wire?

17 mA clockwise
75 mA clockwise

52 mA clockwise
17 mA counterclockwise
75 mA counterclockwise

A conducting rod with a length of 25 cm is placed on a U-shaped metal wire that has a resistance R of 8.0 ? as shown in the figure. The wire and the rod are placed in the plane of the paper. A constant magnetic field of strength 0.40 T is applied perpendicular into the paper. An applied force moves the rod to the right with a constant speed of 6.0 m/s. What is the magnitude and direction of the induced current in the wire? 17 mA clockwise 75 mA clockwise 52 mA clockwise 17 mA counterclockwise 75 mA counterclockwise

Explanation / Answer

answer is 75 mA counter clockwise

i is in the direction of F*B

NOW

e=blv

e=ir

i=blv/r

i=0.4 * 1/4 * 6 / 8

= 75 /1000 A

= 75 mA

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.