The Base Current Of A Transistor Is  and The Collector Current Is 2 MA. What Is The Current Gain For The Common Base Configuration? 

Why Kaysons ?

Video lectures

Access over 500+ hours of video lectures 24*7, covering complete syllabus for JEE preparation.

Online Support

Practice over 30000+ questions starting from basic level to JEE advance level.

Live Doubt Clearing Session

Ask your doubts live everyday Join our live doubt clearing session conducted by our experts.

National Mock Tests

Give tests to analyze your progress and evaluate where you stand in terms of your JEE preparation.

Organized Learning

Proper planning to complete syllabus is the key to get a decent rank in JEE.

Test Series/Daily assignments

Give tests to analyze your progress and evaluate where you stand in terms of your JEE preparation.

SPEAK TO COUNSELLOR ? CLICK HERE

Question

The base current of a transistor is  and the collector current is 2 mA. What is the current gain for the common base configuration? 

Solution

Correct option is

0.95

 

 and collector current 

Therefore, current gain  is 

            

              

              = 20 

The current gain  is

          

              

              .

SIMILAR QUESTIONS

Q1

A semiconductor is known to have an electron concentration of  and a hole concentration of . Is the semiconductor n-type or p-type? What is the resistivity of the sample if the electron mobility is 23,000 cm2V–1s–1 and hole mobility is 100 cm2V–1s–1.

Q2

The electrical conductivity of  a semiconductor inceases when electromagnetic radiation of wavelength shorter than 2480 nm is incident on it. Find the band gap for the semiconductor. Given :

.  

Q3

At absolute zero of temperature, the electrical conductivity of a pure semiconductor is

Q4

In pure silicon at 300 K the electron and hole concentration is each equal to . When doped with indium, the hole concentration increases to . What is the electron concentration in doped silicon?

Q5

In a transistor circuit, the collector current is 50 mA and the base current is 1 mA. The current gain  is

Q6

In a transistor circuit, the collector current is 9.8 mA and the base current is 10 mA. The current gain  is 

Q7

In a transistor amplifier, the two ac current gains  as defined as . The relation between  is

Q8

In a transistor, a change of 8.0 mA in the emitter current produces a change of 7.8 mA in the collector current. What change in the base current is necessary to produce the same change in the collector current?

Q9

In a common emitter amplifier, the output resistance is  and the input resistance . In the peak value of the signal voltage is 10 mV and , then the peak value of the output voltage is 

Q10

In the depletion region of an unbiased pn junction diode, there are