A compass with its needle pointing north sits on a table. We place a straight wire over the compass parallel to its needle. We then send a conventional current running south to north through the wire. How does the compass needle respond to the current?

A. The compass needle deflects toward the west.
B. The compass needle deflects toward the east.
C. The compass needle does not do anything.
D. The compass needle turns around to point south.


A. The compass needle deflects toward the west.

Physics & Space Science

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Diamond has a notably high thermal conductivity because of its strong chemical _____________.

Fill in the blank(s) with the appropriate word(s).

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A) frequency. B) wavelength. C) both of these D) neither of these

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Like Olympus Mons, volcanoes on Venus

A) have been extinct for billions of years. B) are shield volcanoes. C) form where continental plates collide. D) only form at the equator. E) are much larger than typical volcanoes on Earth.

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