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Q. What are transistor amplifiers? What is meant by efficiency of an amplifier? What is amplifier coupling?
The AMPLIFIER is a device that enables an input signal to control an output signal. The output signal will have some (or all) of the characteristics of the input signal but will generally be larger than the input signal in terms of voltage, current, or power. A transistor amplifier is a current-control device. The current in the base of the transistor (which is dependent on the emitter-base bias) controls the current in the collector.
Once current is controlled it can be used to give a voltage gain or a power gain. The efficiency of an amplifier refers to the amount of power delivered to the output compared to the power supplied to the circuit. Since every device takes power to operate, if the amplifier operates for 360° of input signal, it uses more power than if it only operates for 180° of input signal. If the amplifier uses more power, less power is available for the output signal and efficiency is lower. Since class A amplifiers operate (have current flow) for 360° of input signal, they are low in efficiency.
How is segmentation implemented in typical microprocessors? The first advantage is as memory segmentation has is that only 16 bit registers are needed both to store segment bas
Q. (a) Determine the voltage at A in Figure . (b) With V i = 10 V, R 1 = 10 k, R 2 = 1000 , and A = 100, find the current i .
#quesFind a minimum two level, multiple-output AND-OR gate circuit to realize these functions (eight gates minimum). F1(a,b,c,d) =Sm(10,11,12,15) +D (4,8,14) F2(a,b,c,d) =Sm(4,11
Ask question #Minimum 100 words accepted how does the charge plate relate to the movement of electrons
The force between two wires 1 metre apart and each carrying 1 amp is 2 x 10 -7 Newtons when in a vacuum (or in practice, air).However, it is found experimentally that the force is
Q. Explain a common emitter configuration without a feedback. A simple common emitter transistor amplifier--having no negative feedback--is not an ideal amplifier. This is beca
CMC Complement Carry Instruction This instruction complements the carry flag i .e if the carry flag is 1 before the execution of this instruction it will be reset and if
Q. A beam containing two types of charged particles is moving from A to B. Particles of type I with charge +3q, and those of type II with charge -2q (where -q is the charge of an e
brifly explain capacitance switching
Suppose that the length of a 10Base-5 cable is 2500 metres. If the speed of propagation in a thick co-axial cable is 60% of the speed of light, how long does it take for a bit to
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