A Thin Copper Rod 1

question 143

Multiple Choice

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

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

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Definitions:

Elaborative Rehearsal

A technique in memory that involves thinking about the meaning of the term to be remembered, as opposed to repetitive rote memorization.

Learning List

A method or a tool used for memorization that involves enumerating or cataloguing information in a structured format.

Stored Memory

Information that has been retained over time and can be recalled or accessed from the brain.

Anterograde Amnesia

The loss of the ability to create new memories after the event that caused the amnesia, leading to a partial or complete inability to recall the recent past, while long-term memories from before the event remain intact.