The needle of a magnetic compass points north. This alignment is due to (i) a magnetic force on the needle; (ii) a magnetic torque on the needle; (iii) the magnetic field that the needle itself produces; (iv) both (i) and (ii); (v) all of (i), (ii), and (iii).
The needle of a magnetic compass points north. This alignment is due to (i) a magnetic force on the needle; (ii) a magnetic torque on the needle; (iii) the magnetic field that the needle itself produces; (iv) both (i) and (ii); (v) all of (i), (ii), and (iii).
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The needle of a magnetic compass
points north. This alignment is due to
(i) a magnetic force on the needle; (ii) a
magnetic torque on the needle; (iii) the
magnetic field that the needle itself produces;
(iv) both (i) and (ii); (v) all of (i), (ii),
and (iii).
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