The quantity of charge q (in coulombs) that has passed through a surface of area 2.10 cm2 varies with time according to the equation q = 4t3 + 3t + 6, where t is in seconds. (a) What is the instantaneous current through the surface at t = 0.950 s?  A (b) What is the value of the current density?  kA/m2

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A: Given: q=4t3+6t+6A=2.05 cm2   =2.05×10-4 m2

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Q: The quantity of charge q (in coulombs) that has passed through a surface of area 2.10 cm2 varies…

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Q: 1. The current supplied to an air conditioner unit is 4.5 amps. The air conditioner is wired using a…

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Q: The quantity of charge q (in coulombs) that has passed through a surface of area 1.95 cm² varies…

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