| 1. | The magnetic needle is free to rotate in the horizontal plane.
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| 2. | A magnetic needle is placed parallel with the copper strip.
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| 3. | VERO BEACH, Fla .-Dave Wallace's internal compass led him home, the magnetic needle pointing west.
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| 4. | An "'astatic system "'comprises two equal and parallel magnetic needles, but with their polarities reversed.
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| 5. | It consists of a tiny, powerful magnetic needle pivoted at the centre of the coil.
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| 6. | They come at last to the pole proper, where they find a huge magnetic needle.
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| 7. | Romagnosi's experiments showed that an electric current from a voltaic pile could deflect a magnetic needle.
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| 8. | In order to navigate, Peral used a bronze magnetic needle installed in the ceiling of the turret.
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| 9. | The typical Chinese navigational compass was in the form of a magnetic needle floating in a bowl of water.
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| 10. | While compass surveying, the magnetic needle is sometimes disturbed from its normal position under the influence of external attractive forces.
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