Physics, 31.03.2020 00:14 smelcher3900
A fuse in an electric circuit is a wire that is designed to melt, and thereby open the circuit, if the current exceeds a predetermined value. Suppose that the material to be used in a fuse melts when the current density rises to 390 A/cm2. What diameter of cylindrical wire should be used to make a fuse that will limit the current to 0.67 A
Answers: 1
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An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?
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Light traveling in a medium with a refractive index 1.19 is incident on a plate of another medium with index of refraction 1.79. at what angle of incidence is the reflected light fully polarized?
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Along wire carrying a 4.2 a current perpendicular to the xy-plane intersects the x-axis at x=−1.7cm. a second, parallel wire carrying a 3.0 a current intersects the x-axis at x=+1.7cm. part a at what point on the x-axis is the magnetic field zero if the two currents are in the same direction? express your answer to two significant figures and include the appropriate units.
Answers: 2
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