Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
A DC shunt motor connected to a 120-v line runs at a speed of 1200 rpm when the armature current is 18A. The armature resistance is .1 ohms. Assuming constant field flux, what is the speed when the armature is 50A?(Hint : Speed is directly porportional to counter emf.
a) 1167.5rpm
b) 1200rpm
c) 1263.35rpm
d) none of the above Need to see work and formulas to better understand
1. which would have a higher line reactance in ohms. An overhead 138KV line or an overhead 34KV line. Why. 2. Does line charging amps increase or decrease with line length. Why
Consider points P(2,4,3) and Q(1,-5,2) in three dimensional space: Find the position of vectors r1 and r2 for P and Q in terms of unit vectors i,j,k Determine graphically and analytically the resultant of these position vectors Hint: resultant vector..
A system is described by the differential equation ty'(t)-8y(t)=x(t). Classify the system as to linearity, time-invariance and stability. A system is described by the equation y(t)= Intergral x(lamda)d(lamda) (from t/3 to infinte). Classify the sys..
A copper busbar 10cm wide, 5 mm thick, and 10 m long carries a current of 2kA, Calculate the voltage drop if the temperature of the busbar is 120 degree. What is the power loss per meter
At a substation the primary of a step-down transformer (turns ratio = 1:26) receives the voltage from the high-voltage transmission line. Because of your usage, a current of 48.0 mA exists in the primary of this transformer.
A 480 V, three phase system is supplying a 10kW heater and a 5kVAR cap bank. draw the power triangle and calculate the line current
Display the time waveforms. Make sure the waveforms can be clearly seen and the axes are correctly labeled. Calculate and display the RMS value of the 2 Hz signal and the recovered signal.
Data at a rate of 2 Mbps is to be transmitted via a pass-band communication system whose carrier frequency is 500MHz. A binary antipodal system with roll-off factor of 0.2 is used for this communication.
An RC electric circuit is to have a rise time of one microsecond (1 μs). Select appropriate values of R and C to accomplish this objective.
A 30kVA, 50 Hz, 4 pole alternator connected to an infinite bus at rated voltage has Xd = 1.00pu and Xq = 0.6 pu. For zero excitation find the output interms of rated power that the machine can deliver without loss of synchronism.
An emitter follower is operating at a collector bias current of 0.25 mA and is used to connect a 10 kiloohm source to a 1 kiloohm load. If the nominal value of beta is 100, what output resistance Rout and overall voltage gain G result
A Zener diode specified as follows: VZ=6.8V at IZ=5mA, rZ=20Ω,IZK=0.2mA. The Zener is operated in a regulatorcircuit having a 9V ± 5% supply and a load varying from 2mAto 10mA. Find the value of R for which the minimum Zener current is 21ZK.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd