Electronic Devices-Power Amplifiers

Electronic Devices-Power Amplifiers
51. The efficiency of any amplifier is the ratio of signal output power to signal input power.
  • TRUE
  • FALSE
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52. A class A amplifier conducts 180° of the cycle.
  • TRUE
  • FALSE
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53. The class C amplifier is biased below cutoff.
  • TRUE
  • FALSE
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54. Class B amplifiers are usually operated in push-pull to obtain an output that is a near replica of the input signal.
  • TRUE
  • FALSE
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55. In a large-signal amplifier, the ac signal only needs to move over a small percentage of the total ac load line.
  • TRUE
  • FALSE
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Electronics
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