A Ring with a Clockwise Current (As Seen from Above

question 5

Multiple Choice

A ring with a clockwise current (as seen from above the ring) is situated with its center directly above another ring, which has a counter-clockwise current, as shown in the figure. In what direction is the net magnetic force exerted on the top ring?

• A) upward
• B) downward
• C) to the right
• D) to the left
• E) The net force is zero.

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Definitions:

Infantile Amnesia

The inability of adults to recall memories from early childhood, typically prior to age 3 or 4.

Memory Decay

The gradual fading or weakening of memories over time due to non-use or passage of time.

Retrieval Failure

The inability to recall information from memory due to absence of cues or encoding problems.

Metamemory

An understanding about the processes that underlie memory, which emerges and improves during middle childhood.