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1. What is the magnetic flux crossing an infinitesimal surface oriented parallel to the magnetic flux density vector?
2. For what orientation of the infinitesimal surface relative to the magnetic flux density vector is the magnetic flux crossing the surface a maximum?
The high-voltage side of a transformer has 750 turns, and the low voltage side has 50 turns. When the high side is connected to rated voltage of 120 V, 60 Hz, a rated load of 40 A is connected to the low side.
Draw the circuit of a summing amplifier with four inputs.
Adding dopants to a sample of silicon is found to reduce the Hall coefficient by a factor of 10 and increase the conductivity by a factor of 5. What effect has this dopant addition had on the mean free path
Consider the power amplifier model above. Choose a sample time T and obtain the pulse transfer function G (z). Use root locus plot with 'grid' to design a static compensator for ζ = 0.7. Plot the step response.
The enclosure is to be built to have an area A of 2000 ft^2. The cost of the fence is $50 per foot for the curved portion and $40 per foot for the straight sides. Use the fminbnd function to determine with a resolution of 0.01 ft the values of R a..
One of the ways to look at programming at the assembly-language level is to consider it as putting together code fragments that do various little jobs. (This is a little higher-level than just thinking of it as a sequence of machine instructions.)
a. A WLAN uses the 1-Mbps IEEE 802.11 infrared standard and the 16-PPM modulation scheme. Compute the period of transmission (time between bits). b. What is the average time between pulses (1 values) and the corresponding average rate of pulse tran..
If the telephone instrument has a resistance of 200 ohms when off hook and represents an open circuit when on hook calculate the combined resistance of the local loop and the power source at the central office.
Find the location and number of image charges if the charge in Figure 5.12a is placed at a distance d from the upper plate and a distance b from the lower plate while the angle between the plates is 30°.
A DC motor has a terminal voltage of 5V, a motor constant of Ka = 5.2 x 10-3 Vs, and an armature resistance of 500-ohm. Find the stall current, max speed in rotations per minute (RPM), and armature current at a speed of 480.769 radian/s (4591.006 ..
a) What is the total resistance corresponding to 1k-ohm, 4k-ohm , 10k-ohm , 4.7k-ohm resistors connected in series b) What is the total resistance corresponding to 10-ohm , 100-ohm , 1k-ohm , 10k-ohm resistors connected in parallel
A coil of wire would around a toroid. The core has a length of 12.5 cm, a cross sectional area of 8cm2, and a relative permeability of 200. Calculate the equivalent reluctance of the core.
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