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Physics, 02.08.2019 18:30 Alreef8468
Asolenoid is made from a copper wire that is 15 m long and has a radius of 1.6 mm. the resistivity of copper is 1.68 x 10-8 ωm. to form the solenoid, the copper wire is tightly wrapped around a tube that is 0.35 m long and has a diameter of 2.5 cm. the solenoid is connected to a power source which supplies an emf of 2.5 v. find the magnitude of the magnetic field through the center of this solenoid.
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Physics, 22.06.2019 11:50, azertyqwerty123
Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?
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Asolenoid is made from a copper wire that is 15 m long and has a radius of 1.6 mm. the resistivity o...
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