Question:

The potential difference across the collector of a transistor, used in common emitter mode is $1.5\, V$, with the collector resistance of $3\, k\Omega$, the emitter current is $[\beta = 50]$

Updated On: Jul 2, 2022
  • $0.70\,mA$
  • $0.49\,mA$
  • $1.1\,mA$
  • $1.9\,mA$
Hide Solution
collegedunia
Verified By Collegedunia

The Correct Option is B

Solution and Explanation

Here, $V_{CE} = 1.5\, V$ $R_c = 3\, k\Omega = 3 \times 10^3 \Omega; \beta = 50$ $\therefore I_{C} = \frac{V_{CE}}{R_{C}} $ $= \frac{1.5}{3 \times10^{3}} $ $= 0.5 \times10^{-3} A $ $I_{B} = \frac{I_{C}}{\beta}$ $= \frac{0.50\times10^{-3}}{50} $ $ = 0.01 \times 10^{-3} A $ $ I_{E} = I_{C} - I_{B} $ $ = \left(0.50 - 0.01\right)\times 10^{-3} $ $= 0.49 \times10^{-3} A$ $= 0.49\, mA$
Was this answer helpful?
0
0

Top Questions on Semiconductor electronics: materials, devices and simple circuits

View More Questions

Concepts Used:

Semiconductors

Semiconductors are a crystalline solid materials, whose electrical conductivity lies between a conductor and an insulator. Semiconductors are mainly used in the manufacturing of electronic devices like capacitors, transistors, diodes, Integrated circuits, etc.

Properties of Semiconductor:

  1. Semiconductor acts like an insulator at Zero Kelvin. On increasing the temperature, it works as a conductor.
  2. Due to their exceptional electrical properties, semiconductors can be modified by doping to make semiconductor devices suitable for energy conversion, switches, and amplifiers.
  3. Lesser power losses.

Uses of Semiconductor:

  1. Semiconductors are widely used in manufacturing electronics devices like transistors, diodes, sensors, integrated circuits.
  2. Semiconductors are widely used in all electronic devices, like mobile phones, digital cameras, communication devices, trains, ATMs, etc.