Calculate The Current Gain  of A Transistor If The Current-gain  is 0.98.

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

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

Solution

Correct option is

49

The current gain  (in common-emitter arrangement) is related to the current gain  (in common-base arrangement) of a transistor as under : 

              

  

  

              = 49.

SIMILAR QUESTIONS

Q1

The resistance of a forward-biased p-n junction is :

Q2

When a semiconductor device is connected with a battery and a resistance in series, a current flows in the circuit. The current almost vanishes if the polarity of the battery is reversed. The device may be :

Q3

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  

                                                                        

Q4

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 :

                                

Q5

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

Q6

A junction diode can be used for :

Q7

p-n junction diode cannot be used :

Q8

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.

Q9

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.

Q10

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.