A Current Can Be Made to Flow in a Wire

question 128

Multiple Choice

A current can be made to flow in a wire if

• A)it is connected to a battery.
• B)it is put into motion near a magnet.
• C)a magnet is put into motion near it.
• D)all of the above.

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Definitions:

Blastocoel

The fluid-filled cavity of a blastula.

Archenteron

The primitive gut formed during the early development of an embryo, which later differentiates into the digestive tract of an animal.

Ectoderm

The embryonic external layer of cells or tissue that forms early on and develops into the skin and nervous system.

Mesoderm

The middle layer of an embryo in early development, between the endoderm and ectoderm, which gives rise to muscles, bones, and blood tissues.