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The full-load slip of a squirrel-cage induction motor is 0.06, and the starting current is five times the full-load current. Neglecting the stator core and copper losses as well as the rotational losses, obtain
A. the ratio of starting torque to the full-load torque
B. the ratio of maximum to full-load torque and the corresponding slip
According to the Buckingham π theorem, how many independent dimensionless groups should there be which characterize this problem?
An ac voltage of 325 V peak value and the diode has a forward resistance of 100 ohm. - What is the RMS value of the current?
design a wide band pass filter with cut-off frequency fl 400 khz fh 600 khz and a pass-band gain 10. the roll-off
A 500 kVA single phase transformer with 0.012 p.u. resistance and 0.06 p.u. reactance, is Connected in parallel with a 250 kVA single phase transformer with 0.014 p.u. resistance and 0.045 p.u.
If 2*10^15 gold atoms per cm^3 are added to intrinsic silicon as a substitutional impurity and are distributed uniformly throughout the semiconductor, determine the distance between gold atoms in terms of silicon lattice constant.
How many amp-hours/day would the battery bank have to deliver if the loads are all ac provided by an 85% efficient inverter?
A force Farrowbold applied to an object of mass m1 produces an acceleration of 3.40 m/s2. The same force applied to a second object of mass m2 produces an acceleration of1.60 m/s2. If m1 and m2 are combined into one object
After several hours of operation, the resistance has increased to 170 ohms. Determine the temperature rise and the final temperature of the machine.
An inverting op amp has Ri = 20 k Ohms, Rf = 500 k Ohms, and Req (resistor between + input terminal and ground) = 19 k Ohms. How much does the offset voltage increase if Req is replaced by a short circuit
It is decided to apply a Fast Hopping (FH) scheme on the above ASK system. The hopping is made over 12 channels of 100 kHz; or over 1.2 MHz bandwidth. The ASK signal hops 6 bands per bit period. Now a strong jammer randomly jams one of the 12 FH c..
Explain the reasoning in the application "Tiger Woods' Rents" as to why Tiger Woods was able to capture essentially all the rents from some companies but not from others.
How to compare a number of existing building designs with varying structural systems to establish their embodied energy (i.e. different height, width, materials etc).
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