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![]() In a television receiver, for example, resonance occurs when the frequency of one of the incoming signals reaching the circuit is near the natural frequency of the circuit, which then responds by absorbing maximum energy from the signal as the current within the circuit surges back and forth in step with the very weak current in the antenna.Ī form of resonance somewhat analogous to a certain kind of mechanical resonance has been detected on the nuclear scale. Its occurrence in frequency-sensitive (alternating-current) circuits makes it possible for communication devices equipped with such circuits to accept signals of certain frequencies while rejecting others. ![]() Resonance in electrical systems is of a somewhat different nature. Britannica Explains In these videos, Britannica explains a variety of topics and answers frequently asked questions.Ī most interesting condition known as resonance occurs when the phase angle is zero in equation (31), or equivalently.This Time in History In these videos, find out what happened this month (or any month!) in history.#WTFact Videos In #WTFact Britannica shares some of the most bizarre facts we can find. ![]() ![]() ![]()
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