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1. In a diff amp, both emitters are tied together and get current from a common resistor. If you were to replace the common resistor with any type of component, what would you use to improve operation?
2. Why does a diff amp have a higher input impedance than a CE amplifier?
When it is operating at rated load, the voltage drops in the total leakage reactance and the total resistance are, respectively, 2 and 1 per cent of the rated voltage. Determine the input power and power factor when the transformer delivers 10 kW ..
Signal generator‘s internal impedance is purely resistive andhas an open-circuit voltage of 3.5 V. When the generator is loaded with 22 ohms of resistance, its terminalvoltage drops to 2.8 V. What is the generator's output impedance (pure resistanc..
find the maximum possible error in degrees.
Although the use of p.u.valuefirst sight seem a rather indirect method of expression there are, in fact, great advantages. Give these advantages
The switch in the circuit(b) shown below has been in position A for a long time. It is moved to position B at time t=0. Find Vout(t) for t>0.
Find the transfer function, X3(s)/F(s), for each system shown:
Although sums behave like integrals, because of the discrete nature of the sums one needs to be careful with the upper and lower limits more than in the integral. To illustrate this, consider the separation of an integral into two integrals.
A transmission line constructed from perfect conductors and airdielectric is to have a maximum dimension of 8mm for its crosssection. The line is to be used at high frequencies. Specify the dimensions if it: (a) a two-wire line with Zo = 300 Ω
Three test charges, each with a charge of +1x10-6 C, are located at the points of an equilateral triangle. If the legs of the triangle are 10 cm long, what is the total force acting on each charge? (Assume vacuum, or dry air.)
Find the waveform for the average current if the voltage across a 0.06-µF capacitor is as shown in given figure.
All of us know that an automatic iron box set at "silk" will get heated upto a particular value, and if it is set at "wool"' iron box will get heated upto a higher value. Draw a block diagram representing the control system.
Draw a circuit that shifts cyclically a register to left or toright ans is also able to preserve this register's state. Given aretwo controls C1 and C2 that select any of these three operations.use only NOT, AND and OR gates and D type flip flop.
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