Design a circuit to limit a 20 V rms sinusoidal voltage to a maximum positive amplitude of 10 V and a maximum negative amplitude of using a single 14 V dc voltage source.

Two 10 uF capacitors have been connected in parallel across a 230 V 50 Hz AC supply. The current drawn from the supply will be approximately: Select one: a. 1.44 A b. 0.36 A c. 11.5 A O d. 23.0 A

A series circuit consisting of 17ohm resistance and 20mH inductane is connected across a 220V(RMS) 60Hz supply. Determine the magnitude of the total current in the circuit.

Draw a diagram of a 60 Hz AC voltage waveform that is being altered by a 3rd (2)harmonic where the 3rd harmonic is subtractive. (It may assist you to draw the fundamental and the 3rd harmonic then the combined waveform). (2)

1- For the values = 0.7 and W, = 2 find the rise time, peak time, settling time, and the maximum peak values. the

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Draw and design two different circuits that you have studied who could shape the waveform Vx = 10 sin wot into a square waveform with a duty cycle = 50%.

Inductors are fundamental components in electronics and electrical circuits. They are passive devices that store energy in the form of a magnetic field when crossed by an electric current. Inductors consist of a wire wound around a core, often made of iron or another ferromagnetic material. The storage of magnetic energy in inductors is expressed in terms of inductance, measured in henries (H). What is the value of inductive reactance (XL​) in ΩΩ, exhibited by the inductor in the circuit below?

A 47-ohms load resistor is connected in series with a 10-uF capacitor. At what frequency will the capacitor reach the same value as the load resistor?

A double beam oscilloscope displays 2 sine waveforms A and B. The time/cm switch is on 150µs/cm and the volt/cm switch on 5 V/cm. The width of each complete cycle is 8 cm for both the waveforms. The height of waveforms A and B are 5 cm and 4 cm respectively. Determine their a) frequency, b) phase difference, and c) peak and d) r.m.s value of voltages. The difference between the two waveforms is 0.7 cm.