what is bandwidth ? Write methmetical relation with quality factor ?Define quality factor?
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Answer:
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• Bandwidth is also the amount of data that can
be transmitted in a fixed amount of time.
For digital devices, the bandwidth is
usually expressed in bits per second(bps) or
bytes per second.
For analog devices, the bandwidth is
expressed in cycles per second, or Hertz (Hz).
• The quality factor relates the maximum or peak
energy stored in the circuit (the reactance) to
the energy dissipated (the resistance) during
each cycle of oscillation meaning that it is a
ratio of resonant frequency to bandwidth and
the higher the circuit Q, the smaller the
bandwidth, Q = ƒr /BW.
• The quality factor or Q factor is a dimensionless
parameter that describes how underdamped an
oscillator or resonator is.
(or)
It is defined as the ratio of the peak energy
stored in the resonator in a cycle of oscillation
to the energy lost per radian of the cycle.