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Q3: The magnetic field at any point
Q5: For a certain multiple-slit barrier the slit
Q9: Two large insulating parallel plates carry positive
Q17: A charged capacitor and an inductor are
Q18: A certain capacitor has a capacitance
Q21: In a Michelson interferometer, in order to
Q29: A sinusoidal electromagnetic wave with an electric
Q33: An electron and a proton are both
Q34: The objective lens of the Yerkes telescope
Q70: Two wires made of the same material