A horizontal metal bar oriented east-west drops straight downin a location where

Question

A horizontal metal bar oriented east-west drops straight downin a location where the earths magnetic field is due north. As aresult, a motional emf develop between the ends. Which end ispositively charged? a.the east end b.the west end c.neither end carries a charge can someone please explain why? A horizontal metal bar oriented east-west drops straight downin a location where the earths magnetic field is due north. As aresult, a motional emf develop between the ends. Which end ispositively charged? a.the east end b.the west end c.neither end carries a charge can someone please explain why?

Explanation / Answer

Now you'll see that your thumb is pointing east. That's thedirection of the force on a positive charge.
To find the direction of the force on a negative charge, usethe left hand and follow the same procedure of first pointing yourfingers in the direction of the velocity (downward), and then themagnetic force (upward). Your thumb, and therefore the force, willpoint west.
In the rod, the east end will accumulate positive charge, andthe west end will accumulate negative charge.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---