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1. The pole faces of a magnet are 4 cm 3 cm and produce a flux of 0.5 mWb. Calculate the flux density.
2. A flux density of 1.8 T exists in an air gap of effective csa 11 cm2. Calculate the value of the flux.
3. If a flux of 5 mWb has a density of 1.25 T, determine the csa of the field.
A 120 V separately excited DC Motor is operated at a fixed field current. It has an armature resistance Ra = 10 ohms, and a machine constant K = 0.1 V/rpm. The armature current is 0.5 amps with no load, and 3.0 amps at full load.
What is the logic equation for ten outputs for a minimized 4-to-16 decoder, assuming ative high inputs and outputs and no enable inputs
A split-phase motor has the following parameters : main winding effective resistance is 4ohm and effective reactance is 8?, and auxiliary winding effective resistance is 8ohm and effective reactance is 4ohm.
Three light bulbs are connected in series to a 100-V battery in a circuit. Each light bulb dissipates 30W, 40W, and 50W, Respectively. Find the current (I) through the light bulbs.
For x(t) --> Linear System --> y(t), x(t) = u(t)-u(t-1) and h(t) = 2e^-t*u(t) Sketch x(t) and h(t) Write down the generic form of the convolution integral Calculate y(t) for t 1, using the convolution integral method.
Assume that there is a resistance of 2.70 k in a system and there is a current of 2.2 Amps flowing thru it. How much energy is consumed by this component in 24 hours
for a Si conductor of length 5um, doped n-type at 10^15 cm^-3,calculate the current density for an applied voltage of 2.5 Vacross its legth. how about for a voltage of 2500V the electronand hole mobilities are 1500 cm^2/V-s and 500 cm^2/V-s,respec..
Half of the area within the plates is filled with paper and the other half is filled with air.
Calculate the inductance of a solenoid with 125 turns if the length of the solenoid is 18 cm and its radius is 1.6 cm
a generator bus with a 1.0 per unit voltage supplies a 150 mw 50 mvar load through a lossless transmission line with
Design a load resistor (resistance rating and power rating) network to have the transformer operate at full load. Design a second network for half load. You may need to combine several resistors to get the desired value.
Discuss how the conclusions from the two experiments described in parts (a) and (b) will differ.
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