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Consider a coil wound on an iron core. Suppose that for operation with a given 60-Hz ac current, the hysteresis loop of the core material takes the form of a rectangle, as shown in Figure. The core volume is 1000 cm3. Find the power converted to heat because of hysteresis.
An analog LTIC system with impulse response function h(t) = u(t+1)-u(t-2) is presented with an input x(t) = t(u(t) - u(t-2)). (a). Determine and plot the system output y(t) = x(t)*h(t)
A 2N3904 has a power dissipation of 625mW without a heat sink. If the ambient temperature is 65 degree C, what happens to the power rating
What is the charge density on the surface of the middle sheet facing the right sheet?
The contects of a six-bit register are initially 100101. The register is shifted four times to the right, with the serial input being 1101. What are the contents of the register after each shift
Two very long parallel wires are 1 cm apart and carry currents of 10Ain the same direction. Thematerial surrounding the wires has μr = 1. Determine the force on a 0.5-m section of one of the wires. Do the wires attract or repel one another?
if a computer executes instructions to sum the contents of memory cells 2 and 999 and store the result in cell 0what
Suppose that V1 (t)=100cos(ωt) and V2 (t)= 100sin(ωt). Use phasors to reduce the sum Vs (t)=V1 (t)+V2(t) to a single term of the form Vm cos(ωt+θ). Draw a phasor diagram, showing V1, V2 ,and Vs. State the phase relationships between each pair of t..
Calculate the sag in a 90-yard span of a 0.035 -in^2 overhead line when covered with ice to a radial thickness of 5/8 in, in a wind that exerts a pressure of 9 lb/ft^2, assume the breaking load as 1620 lb and the weight of the conductor as 0.1 lb/..
An infinitely long wire is placed in a space with relative permeability of 9000 carrying current of 1.9 A in the +y direction. What is the magnitude of the magnetic flux density at (0.03,0,0) [meters] in units of Tesla
A series motor runs at 600 rpm when taking 110 amps from a 230 V supply. The resistance of the armature circuit is 0.12 ohms and that of the series winding is 0.03 ohms. Calculate the speed when the current has fallen to 50 amps
A man has set up a Christmas display using 20 strands of lights (500 Watts/strand). If the man wants to wire the strand outlets to the house panel with a 30 amp breaker, Determine a) The number of 30 amp parallel circuits Cratchit will have to wire..
The student turnsaround and travels half the distance between his current location and his home beforechanging his mind again. This process of changing direction and traveling half the remainingdistance continues until the student reaches a certai..
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