magnetic needle in English

noun
1
a piece of magnetized steel used as an indicator on the dial of a compass and in magnetic and electrical apparatus.
In 1837 Cooke and Wheatstone developed the electric telegraph which used an electric current to move magnetic needles and thus transmit messages in code.

Use "magnetic needle" in a sentence

Below are sample sentences containing the word "magnetic needle" from the English Dictionary. We can refer to these sentence patterns for sentences in case of finding sample sentences with the word "magnetic needle", or refer to the context using the word "magnetic needle" in the English Dictionary.

1. Today, gyrocompasses indicate north without a magnetic needle.

2. The magnetic needle in the Binnacle was the point on which the Mary Turner ever pivoted.

3. A compass is a simple device with only one moving part —a magnetic needle pointing toward the north.

4. The magnetic needle accomplishes an acupuncturing effect for relieving pain and curing disease as expected in typical acupuncture.

5. 2 A compass is a simple instrument, usually just a dial with a magnetic needle that points northward.

6. Aclinic line definition, an imaginary line on the surface of the earth, close and approximately parallel to the equator, connecting all those points over which a magnetic needle shows no inclination from the horizontal

7. Aclinic line definition is - an imaginary line on the earth's surface roughly parallel to the geographical equator and passing through those points where a magnetic needle if suspended freely has no dip or inclination and assumes a horizontal position —called also magnetic equator.