A Thin Copper Rod That Is 1

question 25

Multiple Choice

A thin copper rod that is 1.0 m long and has a mass of 0.050 kg is in a magnetic field of 0.10 T.What minimum current in the rod is needed in order for the magnetic force to cancel the weight of the rod?

• A) 1.2 A
• B) 2.5 A
• C) 4.9 A
• D) 7.6 A
• E) 9.8 A

---

Definitions:

Interest Rates

The rate at which a borrower is charged interest for borrowing money from a lender.

Federal Budget Deficits

The financial situation where the U.S. government's expenditures exceed its revenue in a given fiscal year.

Trade Deficits

Trade deficits occur when a country imports more goods and services than it exports, resulting in a net outflow of domestic currency to foreign markets.

Interest Rates

The cost of borrowing money, typically expressed as a percentage of the amount borrowed, charged by lenders to borrowers.