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1. The pole faces of a magnet are 4 cm 3 cm and produce a flux of 0.5 mWb. Calculate the flux density.
2. A flux density of 1.8 T exists in an air gap of effective csa 11 cm2. Calculate the value of the flux.
3. If a flux of 5 mWb has a density of 1.25 T, determine the csa of the field.
a) Design a circuit with a single opamp to realize V0=V1-4V2, where V1 and V2 are two input voltages. b) Select the resistor values so that no more than .25W is dissipated in any resistor when the input voltages are no larger than 10V
An amplifier with a voltage gain of +40 dB, an input resistance of 10 kO, and an output resistance of 1 kO is used to drive a 1-kO load. What is the value of Avo Find the value of power gain in dB
Which of the transistor currents is always the largest? Which is always the smallest? Which two currents are relatively close in magnitude?
As far as a direct compaison of mechanical switches vs. transistors used as switches, the transistor does have a measurable impedance when ON, and a mechanical switch does not.
A system is called complex if a real-valued input can produce a complex-valued output. Suppose a linear, time-invariant complex system has an impulse response of h(t)= j[u(-t+2)-u(-t)]
A filter with a great deal of attenuation must be placed in an amplifier chain. Ignoring all considerations other than the desire to minimize noise figure, would it be preferable to put the filter before or after a low noise amplifier Why
design a sequential circuit to control the operation of a vending machine which dispenses a $0.25 product. I need a state diagram and a state table. please help! More info: The circuit has three inputs, N, D, Q, and two outputs, P and C.
A sinusoidal voltage has a maximum value of 100V, and the value is 10V at t=0. The period is T=1ms. Determine v(t)
Steam enters a reversible, adiabatic (isentropic) turbine at 8 MPa and 550 oC with a mass flow rate of 3.6 kg/sec. The pressure of the steam flow at the turbine exit is 250 kPa. Neglect the changes in potential and kinetic energies of the flow thr..
A designer wants to represent all decimal numbers from 0 to 33. How many bits are needed? What are the binary representations for 0, 7, IS, 31 and 33? What is the largest value that can be represented?
Draw the circuit diagram of a 4-bit binary adder-subtractor using a 4-bit binary adder and XOR gates. Treat the adder asa block component with appropriate inputs and outputs. you doNOT need to show the internal gates of the adder.
how to evaluate power dissipated in the components of an RLC series circuit by using matlab software?
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