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A half-wave rectifier is needed to supply 15-V dc to a load that draws an average current of 250 mA. The peak-to-peak ripple is required to be 0.2 V or less. What is the minimum value allowed for the smoothing capacitance? If a full-wave rectifier is needed?
A signal has a band width of 15 hz. The Signal is sampled , quantized and binary coded to obtained a PCM signal. Suppose the reconstruction pulse used is p(t)= rect ( (5t / Ts) - 0.5), where Ts= 1/ fs. Specify the equalizer filter E(f) to recover t..
A DC power supply is adjusted to give a no load output voltage of 15 volts with the AC line voltage of 115 volts rms. A full load current of 1A is drawn into the circuit and the output voltage drops to 14.89 volts.
pecify the value for R. What is the diode current with the load connected What is the increase resulting in the output votage when the load is disconnected What change results if the load resistance is reduced to 100ohms? To 75ohms To 50ohms
Draw all force vectors on charge 2 due to every other charge. Label each vector accordingly with two subscripts. Draw the vectors so that the tail of each vector originates on the charge.
If a constant current load draws 1 nA from the capacitor, how long does it taketo completely discharge the capacitor. Draw the voltage of the capacitor as a function of timeduring this discharge process.
Your battery uses 4 Amperes to transfer 3 joules of charge through an element in a minute. What is the voltage across the battery AND what is the charge in Coulombs
Due to its wider bandgap than silicon, a GaAs red light emitting diode (LED) typically has a turn-on voltage of 1.6 V. Assuming the maximum allowable current through the LED is 16.7 mA,
A 200-turn toroidal coil (see Figure) has r = 1 cm and R = 10 cm. When a current given by 0.05 sin(200t)A flows in the coil, the voltage is 0.5 cos(200t)A. Determine the flux Φ as a function of time and the relative permeability of the core materi..
very useful not only in obtaining the rectangular and polar forms of complex numbers
A batch process which involves filling a tank with liquid, mixing the liquid and draining the tank, is automated with a PLC. The specific sequence of events is as follows
What is the smallest frequency that can be used to sample each of the following continuous-time signals such that the signal can be recovered from the discrete samples (a) \(x(t)=1+cos(2000\pi t)+cos(4000\pi t)\)
inkjet printer power and rating probleman a4 inkjet printer uses ink cartridges with a mass of 250g supported by a
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