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What will be the power factor when the resistor voltage is 9 V at an angle of 30 degrees, and the capacitor voltage is 3 V at an angle of - 60 degrees in a RC series circuit? Also, what will be the power factor when the inductor voltage is 9 V at an angle of 45 degrees, and the resistor voltage is 3 V at an angle of - 45 degrees in a RL series circuit?
1. can a transformer ratio LTC control MW or Mvar power flow on a parallel transformers 2.what test is used to calculate a transformer through fault impedance 3. List three design or operating factors which make a generator more stable
A time varying capacitor is characterized by the charge- voltage equation q(t) = C(t)v(t)
A cyclotron used to accelerate alpha [articles (m=6.55 x 10^-27kg, q=3.2x10^19C) has a radius pf .50, and a magnetic field of 1.8T (a)what is the period of revolution of the alpha particles (b)what is their kinetic energy
Power Factor, A single phase electric motor has an output power of 10 kW and an efficiency of 90% at full load. The motor is fed from a 240 V supply via a cable that has a resistance of 10 milli ohms per metre length.
A 6-bit DAC has an input 1001012 and uses a 10.0-V reference.
A unipolar 16 bit ADC measures 0-10 volts full scale. a) What is the minimum resolvable voltage b) What is the percent quantization error c) What is the percent quantization error if a 1 volt max signal is input
A robot arm must be able to extend 24 in. horizontally in 2 s while carrying a load of 10 lb. How much force is required, assuming the arm is accelerating all the way
Consider the casual LTI system where the output relates to the input by the following differential equation: dy(t)/dt + 2y(t) = x(t) a) Determine the frequency response H(jw).
How would you determine whether a given function, f(t), had finite or infinite energy. Give an example of a function with finite energy and one with infinite energy.
The bottom of the conduction band at one end of a silicon resistor is at the same energy level as the top of the valence band at the other end. What current flows through the resistor if the resistance is 1.12 kOhms
A half-wave rectifier circuit with a 1-k ohm load operates from a 120-V (rms) 60-Hz household supply through a 10-to-1 step-down transformer. It uses a silicon diode that can be modeled to have a 0.7-V drop for any current.
how do we determine the direction of current in a multiloop circuit with more than one source of e.m.f?
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