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The magnetic circuit shown in Figure 2 is made of silicon steel, for which the B-H curve is provided in Figure 3. Each coil has 500 turns. It is required to establish a flux of 3.6 mWb in the air gap, by applying the same current to each coil, i.e., |I 1|=|I 2| (and note their orientation).
What is the required current? The dimensions of the magnetic circuit are as follows:
Cross-sectional area of all legs: 30 cm2
Length of path A: 90 cm
Length of path B: 90 cm
Length of path C: 45 cm
Air gap length: 0.4 mm
Using the items that make up a science class magnet (wire, a nail, and a small dry cell battery) as examples, explain the factors that affect the strength of a magnet.
The adjustable contact of a linear potentiometer is set at the mechanical center of its adjustment. If the total resistance is 1000 O, what is the resistance between each end terminal and the adjustable contact
a curve of radius 159 m is banked at an angle of 11deg. an 810-kg car negotiates the curve at 93 kmh without
What does the CPU do
The serial ports on two computers which use binary signaling are connected by a twisted pair cable. The cable has a flat frequency response up to 120KHz, with negligible group delay distortion. That is, the bandwidth of the cable is 120KHz.
A 10 K-ohm pot is used as a position sensor with a 10 -V supply. The input resistance to the interface circuit is 50 K-ohm. Find the loading error when the pot is in the middle of its range.
Specify how many bits are needed to appropriately digitize each of the following signals. Choose from: 6 bits, 8 bits, 10 bits, 12 bits, 14 bits, or 16 bits. a. A signal where the maximum amplitude is 1 volt and the rms noise is 1.5 millivolts.
(a) Evaluate the line integral of H about the rectangular path P1(2,3,4) to P2(4,3,4) to P3(4,3,1) to P4(2,3,1) to P1 given H = 3z ax - 2x3 az A/m. (b) Determine the quotient of the closed line integral and the area enclosed by the path as an appro..
the inner conductor has a radius of a=2cm theradius of the outer conductor is 4cm, and the length of thecylinder is l=6cm. assuming no field fringing and free spacebetween the conductors and neglecting fringing, findA.the electric field intensity ..
Given a three phase motor: 5 hp, 3515 rpm, 230V, 10A, efficiency = 75%; derive the per-pharse equivalent circuit of the motor.
A solar thermal plant with energy storage capability is to be constructed at about a 40° latitudeto provide the electric energy to a system whose 24-hr average load is 100 MWe during the winter.Assume that the solar thermal power plant will have a 25..
The loading of an industrial facility on a 240 V, 60 Hz system includes: 20 kW resistive load 50 kW induction motors operating at 0.7 power factor lagging 10 kVA capacitive load at 0.7 power factor leading
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