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Electronics and Communication Microprocessors And Microcontrollers Difficulty: Medium

A signal x(t) = 100cos(24π × 10 3 )t is ideally sampled with a sampling period of 50 psec and then passed through an ideal lowpass filter with cutoff frequency of 15 kHz. Which of the following frequencies is/are present at the filter output? A woofer should be fed from the input through a The circuit with a fixed emitter current is called Consider the following data for the circuit shown above: Ammeter : Resistance 0.2 Ω; Reading 5.0 A Voltmeter: Resistance 2 kΩ ; Reading 200 V Wattmeter : Current coil resistance 0.2 Ω Pressure coil resistance 2 KΩ Load : Power factor = 1 The reading of the Wattmeter is: An inductive pick-up is used to measure speed of a shaft on which a 120 tooth-wheel is attached. The number of pulses produced per second is 3000. What is the RPM of the shaft?