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Engineering, 20.10.2021 02:40 tink921

one coil is placed on top of another. the bottom coil is connected in series to a battery and a switch. with the switch closed, there is a clockwise current in the bottom coil. when the switch is opened, the current in the bottom coil decreases abruptly to zero. what is the direction of the induced current in the top coil, as seen from above while the current in the bottom coil decreases?

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