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Economic models need to resemble, as much as possible, the phenomena being explained.
Electromagnetic Latching Relay
A type of relay that maintains its state after being actuated, using a permanent magnet to hold the armature in position until it is reset.
Latch Coil
A coil in a relay or electrical circuit that, once energized, maintains its state until it is specifically reset, allowing it to function as a memory element in a control system.
Unlatch Coil
An instruction or action that interrupts the current flow to a coil, allowing a relay or similar device to return to its de-energized state.
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Q87: A demand curve is always flat.
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