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.
Q. How does a MOSFET amplify electrical signals? While a minimum requirement for amplification of electrical signals is power gain, one finds that a device with both voltage an
What do these 8086 instructions do? STD-Set Direction Flag. when the instruction is implemented ,the direction flag of 8086 is set to 1. IRET-Interrupt Return. This instruc
Find the resonant frequency: Find the resonant frequency ω0 (or f0) for the given series RLC circuit v = Vm sin ωt = 50 sin ωt Figure Also determine the expre
Program Analysis We have to find the greater of two given number. We can store the given numbers in two different registers ( suppose register A and B). Then we will com
MATLAB assignment
Q. Show Elementary Synchronous Machines? The polyphase synchronous machine operates with direct current supplied to the field winding (assumed to be on the rotor, which is usua
A burglar alarm system is controlled by a microprocessor system. The system has three independent circuit each consisting of 7 passive infra red sensors. The controller can be prog
Name the three modes used by the DMA processor to transfer data? The three modes are:- a) Signal transfer mode (cycling stealing mode) b) Block transfer mode c) Demand
A 15 volts source is applied to a series 150 μH inductor and 169 pF capacitor. The resistance of the inductor plus the connecting wires is 1,6 Ω. Determine the voltage drop and
Explain current divider rule Current flow through at every resistor that connected by parallel can be find by using current divider rules (CDR).
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