<p><strong>The typical transfer characteristics of a transistor in CE configuration is shown in figure. A load resistor of <math><mrow><mn>2</mn><mtext> </mtext><mi>k</mi><mtext> </mtext><mi>Ω</mi></mrow></math> is connected in the collector branch of the circuit used. The input resistance of the transistor is <math><mrow><mn>0</mn><mo>.</mo><mn>5</mn><mn>0</mn><mtext> </mtext><mi>k</mi><mtext> </mtext><mi>Ω</mi><mo>.</mo></mrow></math> The voltage gain of the transistor is________.</strong></p>

Voltage gain = ΔlCΔlB×RCRB5×10−3100×10−6×20.5= 200

Ask & Answer Question

Physics Class 12th Semiconductor Electronics Physics NCERT Exemplar Solutions Class 12th Chapter Fourteen

The typical transfer characteristics of a transistor in CE configuration is shown in figure. A load resistor of $2 k Ω$ is connected in the collector branch of the circuit used. The input resistance of the transistor is $0.50 k Ω .$ The voltage gain of the transistor is________.

2 Views | Posted 3 months ago

Asked by Shiksha User

1 Answer

Answered by

alok kumar singh | Contributor-Level 10

3 months ago

Voltage gain = $\frac{Δ l_{C}}{Δ l_{B}} \times \frac{R_{C}}{R_{B}}$

$\frac{5 \times 1 0^{- 3}}{100 \times 1 0^{- 6}} \times \frac{2}{0.5}$

= 200

0 Upvotes 0 Downvotes

Similar Questions for you

Two 10cm log, straight wires, each carrying a current of 5A are kept parallel to each other. If each wire experienced a force of 10^-5N, then separation between the wires is__________cm.

Vishal Baghel

$F = \frac{μ_{0} \times 2}{4 π} \frac{i_{1} i_{2}}{d} l$

$1 0^{- 5} = \frac{1 0^{- 7} \times 2 \times 5 \times 5}{d} = \frac{10}{100}$

$d = 5 \times 1 0^{- 2} m$

d = 5 cm

The positive feedback is required by an amplifier to act an oscillator. The feedback here means:

Vishal Baghel

A portion of the output power is returned back to the input.

The variation of acceleration due to gravity (g) with distance (r) from the centre of the earth is correctly represented by: (Given R = radius of earth)

Payal Gupta

$g \propto r 0 \leq r \leq R$

$g \propto \frac{1}{r^{2}} r > R$

A transistor is used in an amplifier circuit in common emitter mode. If the best current changes by 100 $μ A,$ it brings a change of 10 mA is collector current. If the load resistance is 2 $k Ω$ and input resistance is 1 $k Ω,$ the value of power gain is x × 10⁴. The value of x is_____________.