what is Operational Amplifier
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Answer:An operational amplifier (or an op-amp) is an integrated circuit (IC) that operates as a voltage amplifier. An op-amp has a differential input. That is, it has two inputs of opposite polarity. An op-amp has a single output and a very high gain, which means that the output signal is much higher than input signal.
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Operational Amplifier : It's a DC -coupled high -gain electronic voltage amplifier with a differential input & usually , a single -ended output .In this configuration,an op-amp produces an output potential that is typically hundreds of thousands of times larger than the potential difference between it's input terminals.
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