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The Power amplifiers generally use transformer coupling because the transformer permits ________
A machine started malfunctioning due to some issues with the coupling. The coupling emplaced in the machine was Oldham. The only coupling available in the workshop is Hooke’s coupling. So Oldham coupling can be replaced by Hooke’s coupling.
You are given two amplifiers, A and B, to connect in cascade between a 10-mV, 100-kΩ source (S) and a 100-Ω load (L). The amplifiers have voltage gain, input resistance, and output resistance as follows: for A, 100 V/V, 10 kΩ, 10 kΩ, respectively; for B, 1 V/V, 100 kΩ, 100 Ω, respectively. Your problem is to decide how the amplifiers should be connected so that the voltage gain is maximum.
Chopper stabilized dc amplifiers are complex amplifiers having ________ amplifiers incorporated in the module.
___________ coupling is generally employed in power amplifiers
Consider the following statements regarding R-C coupled amplifiers : 1. The cost of R-C coupled amplifier is low because of low cost of coupling capacitors and resistors. 2. They occupy less space because of small size of resistors and capacitors. 3. They have better frequency response. Which of the above statements are correct ? 
In a two-electron atomic system having orbital and spin angular momenta $${l_1}{l_2}$$  and $${s_1}{s_2}$$  respectively, the coupling strengths are defined as $${\Gamma _{{l_1}{l_2}}},\,{\Gamma _{{s_1}{s_2}}},\,{\Gamma _{{l_1}{s_1}}},\,{\Gamma _{{l_2}{s_2}}},\,{\Gamma _{{l_1}{l_2}}}$$      and $${\Gamma _{{l_2}{s_1}}}.$$  For the jj coupling. scheme to be applicable, the coupling strengths must satisfy the condition
Transformer coupling can be used in ___________ amplifiers
Power amplifiers handle ___________ signals compare to voltage amplifiers
Which of the power amplifiers is not suitable as audio amplifiers?