Physics, 27.03.2020 02:16 smelcher3900
A Rowland ring is formed of ferromagnetic material. It is circular in cross section, with an inner radius of 4.2 cm and an outer radius of 5.8 cm, and is wound with 330 turns of wire. (a) What current must be set up in the windings to attain a toroidal field of magnitude B0 = 0.25 mT? (b) A secondary coil wound around the toroid has 40 turns and resistance 6.0 Ω. If, for this value of B0, we have BM = 800B0, how much charge moves through the secondary coil when the current in the toroid windings is turned on?
Answers: 2
Physics, 22.06.2019 16:40
On your wedding day your lover gives you a gold ring of mass 3.67 g. 48 years later its mass is 3.44 g. on the average how many atoms were abrated from the ring during each second of your marriage? the atomic mass of gold is 197 u. don't enter units
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Physics, 23.06.2019 01:20
Afisherman notices that his boat is moving up and down periodically, owing to waves on the surface of the water. it takes a time of 2.70 s for the boat to travel from its highest point to its lowest, a total distance of 0.700 m. the fisherman sees that the wave crests are spaced a horizontal distance of 6.50 m apart. a. how fast are the waves traveling? b. what is the amplitude a of each wave?
Answers: 1
A Rowland ring is formed of ferromagnetic material. It is circular in cross section, with an inner r...
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