In a CE transistor amplifier,the audio signal | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Given: Collector resistance $R_{C} = 2 \, k\Omega = 2 	imes 10^{3} \, \Omega$.Output voltage $V_{o} = 2 \, V$.Base resistance $R_{B} = 1 \, k\Ome

Vedclass · Accepted Answer

$10 \, mV$

Vedclass · Answer

(D) Given: Collector resistance $R_{C} = 2 \, k\Omega = 2 	imes 10^{3} \, \Omega$.Output voltage $V_{o} = 2 \, V$.Base resistance $R_{B} = 1 \, k\Omega = 1 	imes 10^{3} \, \Omega$.Current amplification factor $\beta = 100$.The output voltage is given by $V_{o} = I_{C} R_{C}$.Therefore,the collector current is $I_{C} = \frac{V_{o}}{R_{C}} = \frac{2 \, V}{2 	imes 10^{3} \, \Omega} = 10^{-3} \, A = 1 \, mA$.Since $\beta = \frac{I_{C}}{I_{B}}$,the base current is $I_{B} = \frac{I_{C}}{\beta} = \frac{10^{-3} \, A}{100} = 10^{-5} \, A$.The input signal voltage $V_{i}$ is given by $V_{i} = I_{B} R_{B}$.Substituting the values: $V_{i} = (10^{-5} \, A) 	imes (1 	imes 10^{3} \, \Omega) = 10^{-2} \, V = 10 \, mV$.

In a $CE$ transistor amplifier,the audio signal voltage across the collector resistance of $2 \, k\Omega$ is $2 \, V$. If the base resistance is $1 \, k\Omega$ and the current amplification of the transistor is $100$,the input signal voltage is

Similar Questions

In a common emitter amplifier circuit using an $n-p-n$ transistor,the phase difference between the input and the output voltages will be.....$^o$

In a transistor amplifier, $AC$ current gain is $64$, the load resistance is $5400 \ \Omega$ and the input resistance of the transistor is $540 \ \Omega$. The voltage gain is

An oscillator is nothing but an amplifier with

In the given transistor circuit,the base current is $35 \mu A$. The value of $R_b$ is.....$k\Omega$.

In a common emitter amplifier of a transistor,if the ratio of the voltage gain and current amplification factor is $4$,then the ratio of the collector and base resistances is

Vedclass Test Series

Exam Paper Generator

Online Exam Module