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- A direct current (dc) that changes in value at regular or irregular intervals. Note: A pulsating direct current may change in value, i.e., be always present but at different levels, or it may be a current that is interrupted completely at regular or irregular intervals, but when present, is always in the same direction.
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- avalanche multiplication, bridge lifter, current billing, dark current, differential mode interference, polar relay, signal-return circuit, stray current