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More Electronics and Communication Questions
Which of the following materials are categories of ceramic materials? 1. Oxides-alumina, Zirconia 2. Non-oxides-Carbides, Borides, Nitrides and Silicides 3. Composites- Particulate reinforced combinations of oxides and non-oxides Select the correct answer using the options given below:
Two coupled coils with self inductances of 4 mH and 16 mH are connected in series. The maximum possible value of inductances can be
The open-loop transfer function of a system is given by $$G\left( s \right)H\left( s \right) = \frac{{100\left( {s + 100} \right)}}{{s\left( {s + 10} \right)}}.$$ In the straight line approximation of the Bode plot, |G(jω) H(jω)| and ∠G(jω) H(jω) at ω = 100 rad/s are:
Consider the speed control system shown in the figure wherein the inner loop corresponds to motor back e.m.f, the controller is an integrator with gain K observes that the load is inertia only. What is the value of K for which steady-state error to unit ramp input $$\left( {{V_r}\left( s \right) = \frac{1}{{{s^2}}}} \right)$$ is less than 0.01 rad/sec?
Consider the following statements regarding an op-amp: 1. All types of negative feedback reduce nonlinear distortion. 2. All types of negative feedback reduce the output offset voltage. 3. Non-inverting (current and voltage) feedback increases the input impedance. 4. Inverting (current and voltage) feedback decreases input impedance. Which of the above statements is/are correct?