Please show how you got all your amswers Two horizontal parallel conducting rods

Question

Please show how you got all your amswers

Two horizontal parallel conducting rods are connected such that a conducting crossbar free to slide along them has a constant current I running through it. The rods are separated by a distance l and are in an external uniform magnetic field of magnitude B directed out of the screen. The crossbar has a length l and mass m. In which direction does the crossbar move? If there is a coefficient of static friction Mu_s between rods and crossbar. Give the expression of I_0, minimum current necessary for the crossbar to move? For the length l of the bar use the notation l.

Explanation / Answer

here,

using right hand rule

the crossbar moves towards right

->

coefficient of static friction is us

let the minimum current be I0

frictional force = force due to current carying wire

us*m*g = B * I0 * L

I0 = us*m*g/(B * L)

the minimum current for the crossbarto move is I0 = us*m*g/(B * L)

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

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