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A motor generates a CEMF at a rate of 0.5 V/100 rpm and has an armature resistance of 15 ?. Twelve volts are applied to the (stopped) motor. Find the armature current just after the power is applied and when the speed is 1500 rpm.
The eddy current loss in a particular magnetic circuit is 10 W/m3. If the frequency of operation is reduced from 50 Hz to 30 Hz with the flux density remaining unchanged, determine the new value of eddy current loss per cubic metre
find its velocity v as a function of t, and by integrating v find its trajectory. Check that in the nonrelativistic limit the trajectory is the expected parabola.
What are the Advantages of Parallel Circuits connection over Serie Circuit Connection ? Why Parallel Connection is Mostly Preferred over Series Connection?
What are the fundamental dimensions of s? What is the diameter of the hailstone in units of inches? What is the volume of the hailstone in units of liters?
A combinational logic circuit has 18 binary inputs. Assuming it takes 50 ms to input one test pattern and record the circuit's output, how long will it take to do an exhaustive test
design a counter which runs from 2 to 12 usingD-flip-flop. My doubt was whether to consider the unused state asdont care or to link to next state, meaning self correcting.When imake it as self correcting there are too many expressions.
Supply the quantisation levels (including zero) that are available. Do this for both the three and 4-bit ADC in table form. What is the resolution of each quantizer?
Consider the following differential equation, where x(t) is the input and y(t) is the output: d/dt y(t)+5y(t)=2x(t) Suppose the input is x(t) = 4u(t) and the initial condition is y(0-) = 6 1. What is the impulse response for the system
Design a 7.5-V zener regulator circuit using a 7.5-V zener specified at 12mA. The zener has an incremental resistance r(z) = 30 ohms and a knee current of 0.5mA. The regulator operates from a 10-V supply and has a 1.2k-ohm load.
A 64k x 16 memory uses coincident decoding by splitting theinternal decoder into X-selection and Y-selection. (a) What is the size of each decoder, and how many AND gates arerequired for decoding the address
A 23-kVA, 2300/230-V, 60-Hz, step-down transformer has the following resistance and leakage-reactance values: R1 = 4 ohm, R2 = 0.04 ohm, Xl = 12 ohm, and X2 = 0.12 ohm. The transformer is operating at 75% of its rated load.
With the internal resistance of 0.14Ω, what will be the minimal load resistance to ensure at least 84 percent of the power delivered by the battery goes to the load
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