If you change the direction of electron flow by switching the connections to the battery what would happen?

If you change the direction of electron flow by switching the connections to the battery what would happen?
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The voltage measured across every component in the circuit wouldtake onthe opposite polarity from what it was originally. If there areany diodes inthe circuit, then current might stop flowing in some brancheswhere it formerlyexisted, or start flowing in branches where there was no currentbefore.
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