A long straight wire carries current toward the east. A proton moves toward the

Question

A long straight wire carries current toward the east. A proton moves toward the east alongside and just south of the wire. What is the direction of the force on the proton? a) north b) south c) up d) down A rod of mass 0.72 kg and radius 0.06 m rests on two parallel rails that are d = 0.12 m apart and L = 0.45 m The rod carries a current of I = 48 A. If it starts from rest, what is the speed of the rod as it leaves the rails if there is a uniform magnetic field of magnitude 0.24 T directed perpendicular to the rod and rails? Answer in units of m/s. 1) 2.31 m/s 2) 13.1 m/s 3) 1.57 m/s 4) 1.31 m/s

Explanation / Answer

here,

the current in the wire is towards east

so the magnetic feild due to wire at proton is into the page

the velocity of protron is also towards east

using right hand rule

the direction of magnetic force on proton is upwards

the correct option is c) up

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

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