PV = 400 x 0.08 = 32 J
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It looks blue as it is only reflecting blue light
Electromagnets can be turned off, this makes it easier to release things from the magnetic field.
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Answer:In a series circuit, adding more resistors increases total resistance and thus lowers current. But the opposite is true in a parallel circuit because adding more resistors in parallel creates more choices and lowers total resistance. If the same battery is connected to the resistors, current will increase.
Explanation:
