The magnetic moment of a current loop does not depend upon
A) the area.
B) the current.
C) the magnetic field.
C
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Which stars always have large positive absolute magnitude?
a. stars of high luminosity b. stars of low luminosity c. nearby stars d. distant stars e. not enough information given
An 84-kW AM radio station broadcasts at 1000 kHz . How many photons are emitted each second by the transmitting antenna? (h = 6.626 × 10-34 J • s)
A) 1.3 × 1032 B) 2.9 × 1024 C) 6.3 × 1012 D) 1.4 × 1015
A gas is placed in a container, which is immersed in an ice-water mixture as shown below
Mercury orbits the sun about once every 80 days. Mercury is observed to keep the same side facing the sun at all times. If Mercury had oceans, how much time would elapse between its high tides
A. there would be no tides B. 40 days C. 80 days D. 160 days