Physics, 22.11.2019 02:31 Demaryaflie
Astudent makes a short electromagnet by winding 580 turns of wire around a wooden cylinder of diameter d = 2.1 cm. the coil is connected to a battery producing a current of 5.1 a in the wire. (a) what is the magnitude of the magnetic dipole moment of this device? (b) at what axial distance z > > d will the magnetic field have the magnitude 4.1 µt (approximately one-tenth that of earth's magnetic field)?
Answers: 3
Physics, 21.06.2019 16:40
Three point charges, two positive and one negative, each having a magnitude of 20 μc are placed at the vertices of an equilateral triangle (30 cm on a side). what is the magnitude of the electrostatic force on the negative charge
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Physics, 22.06.2019 04:10
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Astudent makes a short electromagnet by winding 580 turns of wire around a wooden cylinder of diamet...
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