Give reasons Quick Plz 1.A magnetic compass is used to determine directions. 2.A nail gets magnetized when kept close to a magnet.
3.Two pins attracted by a bar magnet maintain a distance between their ends.
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Iwould sure like to answer your question but i honestly just don’t know

Sorry i don’t know what to do

During the 1800s. hope this !

Answerthe energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.explanationwe define electric potential as the ratio electric potential energy to the charge,    then the following gives us the potential difference,      the formula  may be on your formula sheet.the change in electric potential energy would be the energy that would needed to move it from point a to point b. solving for that, we get    using q = 8.00  × 10⁻¹⁹ c and  δv = 2.00 v, we get    the energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.