Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
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.
Examples of attribute data relevant for a power utility: Examples of attribute data relevant for a power utility are given below. • Consumer data such as categor
Q. Explain Hexadecimal Number System? A Hexadecimal Number System: uses base 16 includes only the digits 0 through 9 and the letters A, B, C, D, E, and F In the Hexade
Q. Three single-phase 100-kVA, 2400:240-V, 60-Hz transformers (each ofwhich has an equivalent series impedance of 0.045+j0.16 referred to its low-voltage side) are connected to fo
Explain the Architecture of 8085. Ø ALU Ø Interrupt control Ø Serial I/O control Ø Timing and control unit Ø Instruction Register & Decoding
explane the special features of dual beam?
Q. The self and mutual inductances of a machine with two windings are given by L 11 = (1 +sin θ), L 22 = 2(1 + sin θ), and L 12 = L 21 = M = (1-sin θ). Assuming θ = 45°, and le
A three-phase, 400-V, wye-connected induction motor takes the full-load current at 45 V with the rotor blocked. The full-load slip is 4%. Calculate the tappings k on a three-phase
(a) contains a freewheeling diode Dm, commonly connected across an inductive load to provide a path for the current in the inductive load when the switch S is opened after time t (
what are the design consideration for electrical wiring harness routing
Determine the number of bits of a natural binary encoder that works with the quantizer: a) If the extreme levels are ±3.1 V, with a step size of 0.2 V. (b) If there are 128 q
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd