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1 Determine the inductive reactance (in ohms) of a 2 mH coil for:a-DCb-60Hzc-4Khzd-1.2MHz
2 Determine the frequency at which a 1mh inductance has the following inductive reactances:a-10-ohmb-4k-ohmc-12k-ohm
If it takes 1 sec to rotate 45 degrees after starting from rest, how long in seconds would it take to instead rotate 81 degrees after starting from rest under the same constant angular acceleration.
A nickel-iron ring withcross-sectional area 0.85cm2 is expected to be driven to itssatur-ation magnetization of 1.1T in a ?eld of 800 A/m. The ?ux density will be measured by an electronic ?ux integrator with input resistance of 1kOhm
What are two types of variables that can be used for values that exceed 256, and describe what is the difference between the variables, how to declare them and the memory allocated, and the numerical range for both.
Discuss the advantages of transforming time-domain circuits into the corresponding frequency domain. How does this change the way circuits are analyzed
A plane circular disk of radius 0.25m rotates at a speed of 200 rad/s about an axis through the center of the disk perpendicular to the plane of the disk. There is a uniform magnetic flux B = 1 Tesla parallel to the axis of rotation.
The voltage magnitude of source 2 and the phase angles of the two sources is to be kept constant. Compute the complex power for each source and the line loss. Tabulate the reactive powers and plot Q1, Q2, and QL versus voltage magnitude jV1j.
The resistance of the filament of the bulb, measured with a standard multimeter, is 16.7 ohms. When the bulb is connected into the circuit and is operating at the rated values given above determine a) the resistance of the filament b) the efficien..
A sensor voltage vi from a sensor is amplified using the amplifier depicted below on the basis of the following specifications: R1 = 3.9 kW ±0.5%; R2 = 100 kW ±0.5%; |Voff|
An SSB generator has a 9 MHz carrier and is used to pass voice frequencies in the 300- to 3300-Hz range. The lower sideband is selected. What is the approximate center frequency of the filter needed to pass the lower sideband.
What would be the initial value of v c (t) when switch is closed and determine the time constants in both cases (switch is open, switch is closed).
The tuning control is required to provide a uniform, linear change in frequency for a fixed rotation of the knob, e.g., 25 kHz per revolution at any operating frequency. You are considering three options for controlling the frequency
a circuit for an ac voltmeter utilizes a moving-coil meter that gives a full-scale reading when the average current flowing throught it is 1mA. The moving-coil meter has a 50-ohm resistance.
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