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1. When a current of 2.5 A flows through a 0.5 H inductor, the flux produced is 80 Wb. Determine the number of turns.
2. A 1000 turn coil has a flux of 20 mWb linking it when carrying a current of 4 A. Calculate the coil inductance, and the emf induced when the current is reduced to zero in a time of 25 ms.
You are going to mass-produce a circuit that is supposed to have a dc output voltage between 3 and 4 V. What kind of a comparator would you use? How would you connect green and red LEDs across the comparator output to indicate pass or fail?
simultaneous pumping into both the upper and the lower laser levels. consider a laser transition between two upper
The characteristic equations for a D flip-flop determine that the output Q is updated to either 0 or 1 after each clock cycle. A loadable D flip-flop has one additional input Load that allows data to be stored in the flip-flop for more than a sing..
Calculate IB and IE for 0
Find and draw the Thévenin equivalent of the circuit shown. The load resistor is RL. - Find and draw the Norton equivalent of the same circuit.
Calculate the rate of flow of heat down a copper rod 10 cm long with a diameter of 0.4 cm If the temperature gradient between its end is 1002C. Thermal conductivity of copper is 385 W/mK.
A science student is building a circut. He has aquired a 8V .5A DC source. However, the LED lights in the circut need 3V or they will burn out. How much resistance should he use to make the circut run at 3V
1. Set θd (t) = 0. Compute the transfer function h(t)/r(t) = T(s). 2. Set r(t) = 0. Compute the transfer function h(t)/θd(t) = Td(s)
Give a figure that represents some basic gray level transformation functions used for image enhancement.
certain digital communication schemes use redundancy in the form of an error control code to improve the reliability
An electrical device has a linear temperature response. The device has a resistance of 120Ω ata temp of -20 degrees celcius and a resistance of 190 Ω at a temp of 120 degrees celcius. a. Calculate the resistance at a temp of 0 degrees celcius.
A narrow beam of electrons is pointed, in vacuum, directly towards a very small spherical target that carries a negative charge of Q = -2x10-11 C. The initial kinetic energy of an individual electron in the beam is ε0 = 100 eV (1 eV = 1.6x10-19 J)
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