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Find the period of a periodic waveform whose frequency is 25 Hz.
Find the frequency of a repeating waveform whose period is 1/60 s , 34 ms.
Redraw the oscilloscope pattern if a +25-mV dc level were added to the input waveform.
Convert the following radians to degrees-p/4 , p/6 , 1/10p.
Determine the time when the current iL reaches a level of 10 mA.
Find the mathematical expression for the current through the coil once the switch is closed.
Write the mathematical expressions for the current iL and the voltage vL if the switch is opened at the instant defined by part (b).
If they do slip, how does the passenger's acceleration compare to the car's?
Find the time required for the current iL to reach 100 mA.
Find the voltage across the coil the instant after the switch is closed.
Write the mathematical expression for the current iL and the voltage vL after the switch is closed.
Identify the fluid contacts present (if any) across the formation, with depths referenced to a sub-sea (SS) datum.
Using the equation for the charging voltage as a guide, write an equation for B as a function of H [B = f(H)] for cast steel.
A test routine will have to be developed to determine whether the results obtained are sufficiently close to the applied ampere-turns.
Write one paragraph with some information about the feast or saint . . . why does the church celebrate this feast or honor this person?
Repeat part (a) if a ferromagnetic core is added having a µ of 2000.
Write the mathematical expression for the current iL after the switch is closed.
Write the mathematical expression for the current iL after the switch is closed at t = 0 s.
Determine the total number of possibilities, and ask the user to identify the configuration and provide the capacitor values.
Sketch the magnetic flux lines and indicate their direction.
Find the reluctance of a magnetic circuit if a magnetic flux F = 4.2 × 10-4 Wb is established by an impressed mmf of 400 At.
If a magnetizing force H of 600 At/m is applied to a magnetic circuit, a flux density B of 1200 × 10-4 Wb/m2 is established.
Find the number of turns N1 required to establish a flux F = 12 × 10-4 Wb in the magnetic circuit of Figure.
Find the mmf (NI) required to establish a flux F = 80,000 lines in the magnetic circuit of Figure.
Each applied mmf establishes a flux pattern in the clockwise direction.