They keep currents and voltages at levels needed for other components to work properly.
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2
What are capacitors?
They store small amounts of electric charge.
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3
What are diodes?
They let current flow in one direction only.
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4
What are LEDs?
They glow when a small current passes through them.
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5
What are transistors?
They are used for amplifying signals for switching.
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6
What are integrated circuits?
They are many complete circuits, with resistors, transistors, other components, and connections all formed on a tiny chip of silicon only a few millimeters square.
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7
What are LDRs?
It is a special kind of resistance falls when light shines on it.
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8
What is NOT gate?
If the input is one state, the output will be the other state.
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9
What is AND gate?
If both of the inputs are high, the output will be high; otherwise the output will be low.
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10
What is OR gate?
If either of the inputs is high, the output will be high; otherwise the output will be low.
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What is NAND gate?
If both of the outputs are high, the output will be low; otherwise the output will be high.
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12
What is NOR gate?
If either of the inputs is high, the output will be low; otherwise the output will be high.
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