Home
Class 12
PHYSICS
A transistor is connected in CE configur...

A transistor is connected in CE configuration. The voltage drop across the load resistance (`R_C`) 3 ks is 6 V. Find the base current. The current gain `alpha` of the transistor is 0.97 Data : Voltage across the collector load resistance (`R_C`) = 6 V .
` alpha = 0.97 : R_C = 3 k Omega`

Text Solution

Verified by Experts

The voltage across the
collector resistance is `R_C = I_C R_C = 6V `
hence `I_C =(6 )/(RC ) = ( 6 )/( 3 xx 10^3) =2mA`
current gai ` beta = (a)/( 1-a) = ( 0.97 )/( 1-0.97 ) = 32.33`
` therefore I_B= (I_C )/(beta) = ( 2 xx 10^(-3))/( 32.33 )= 61.86 mu A`
Promotional Banner

Topper's Solved these Questions

  • SEMI-CONDUCTORS ELECTRONICS

    OSWAAL PUBLICATION|Exercise TOPIC -4 LOGIC GATES (VERY SHORT ANSWER TYPE QUESTIONS)|3 Videos
  • SEMI-CONDUCTORS ELECTRONICS

    OSWAAL PUBLICATION|Exercise TOPIC -4 LOGIC GATES (SHORT ANSWER TYPE QUESTIONS-I)|14 Videos
  • SEMI-CONDUCTORS ELECTRONICS

    OSWAAL PUBLICATION|Exercise TOPIC -3 TRANSISTORS AND THEIR APPLICATIONS (LONG ANSWER TYPE QUESTIONS-)|10 Videos
  • Sample Paper 8

    OSWAAL PUBLICATION|Exercise Exercise|37 Videos
  • SOLVED PAPER (II PUC JULY 2016)

    OSWAAL PUBLICATION|Exercise PART D|11 Videos

Similar Questions

Explore conceptually related problems

In a transistor (beta = 45) , the voltage across 5 kOmega load resistance in collector circuit is 5 V. The base current is

For a CE transistor amplifier, the audio signal across the collector resistance of 2kOmega is 2V. Suppose the current amplification factor of the transistor is 100, find the input signal voltage and base current, if the base resistance is 1 k Omega .

Three resistors of 10 Omega , 15 Omega and 20 Omega are connected in series in a circuit. If the potential drop across the 15 Omega resistor is 3 V, find the current in the circuit and potential drop across the 10 Omega resistor.

A battery of emf 10 V and internal resistance 3 ohm is connected to a resistor. The current in the circuit is 0.5 A. The terminal voltage of the battery when the circuit is closed is

A battery of emf 10 V and internal resistance 3 ohm is connected to a resistor. The current in the circuit is 0.5 A. The terminal voltage of the battery when the circuit is closed is