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It is required to deliver an output DC power of 500 W to a resistive load. The transformer rating required in case of half-wave, conventional full-wave and bridge rectifiers, respectively, is
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Consider an inverting amplifier with a feedback resistor R 2 = 10 kΩ and an op-amp with parameters; A oL = 10 5 and R i = 10 kΩ. Assuming the output resistance R 0 of the op-amp is negligible, the closed-loop input resistance at the inverting terminal of an inverting amplifier will be nearly:
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