﻿ A common-emitter transistor amplifier has a current gain of 50. The collector resistance is  and the input resistance is , calculate the output voltage if input voltage is 0.01 V.  : Kaysons Education

A Common-emitter Transistor Amplifier Has A Current Gain Of 50. The Collector Resistance Is  and The Input Resistance Is , Calculate The Output Voltage If Input Voltage Is 0.01 V.

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Question

Solution

Correct option is

2.5 V

In common-emitter amplifier, the voltage gain is given by

where Rout is the output resistance (here Rout = collector resistance) andRin is the input resistance of the circuit.

= 250.

.

SIMILAR QUESTIONS

Q1

The circuit contains two diodes, each with a forward resistance of  and with infinite backward resistance. If the battery voltage is 6 V, the current through the  resistance is

Q2

Two identical p-n junction may be connected in series with a battery in three ways. The potential drops across the two p-n junction are equal in :

Q3

In case of p-n junction diode at high reverse-bias, the current rises sharply. The value of reverse bias is known as :

Q4

A junction diode can be used for :

Q5

p-n junction diode cannot be used :

Q6

For a common base transistor circuit, the emitter-current and the collector-current are 1 mA and 0.96 mA respectively. Calculate the current gain and base current.

Q7

The current gain for common-emitter amplifier is 59. If the emitter-current is 6.0 mA, find (i) base-current, and (ii) collector-current.

Q8

Calculate the current gain  of a transistor if the current-gain  is 0.98.

Q9

In a silicon transistor, a change of 7.98 mA in the emitter-current produces a change of 7.8 mA in the collector-current. Find the required change in the base current to produce an equivalent change in the collector current.

Q10

The internal resistance of a triode value is  and the amplification factor is 15. What is the potential (at constant-potential) is required to increase the plate current from 6 mA to 9 mA?