Please wait...
1800-212-7858 (Toll Free)
9:00am - 8:00pm IST all days

or

Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this toll free number

022-62211530

Mon to Sat - 11 AM to 8 PM

Ask Applications Of Transistors question free ×
  • CBSE×
  • Class 12 Science×
  • Physics×
  • Semiconductor Electronics×
  • Applications Of Transistors×

Applications Of Transistors Free Doubts and Solutions

CBSE - XII Science - Physics - Semiconductor Electronics

what are the use of transistors and resistors in electric water buzzer please give detailed discription of use these two elements in buzzer circuitory ? and why are they used?

Asked by bhuwnesh16 7th November 2016, 9:53 AM
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

CBSE - XII Science - Physics - Semiconductor Electronics

draw a circuit diagram to study the study the input characteristics of an npn transistor in common emitter configuration .explain briefly how this arrangement is used to obtain the input/output characteristics of transistor.draw  the graphs showing the nature of input /output curves.
 

Asked by mahamood.iphone 23rd December 2015, 7:27 AM
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

CBSE - XII Science - Physics - Semiconductor Electronics

Please explain the derivation of the expressions for voltage gain and the application of those formulae.
Thank You.

Asked by damarlasumanjali 30th August 2015, 5:23 PM
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

CBSE - XII Science - Physics - Semiconductor Electronics

whats the difference between half wave retifier and full wave rectifier?

Asked by divyashrisureshbabu 6th October 2014, 7:23 PM
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

CBSE - XII Science - Physics - Semiconductor Electronics

A common emitter low_frequency amplifier has an effective input resistance of 1 kΩ. The collector load resistance is 5 kΩ. On applying a signal, the_base current changes by 10 μA and the collector current changes by 1 mA. what is the power gain of this amplifier?

Asked by Topperlearning User 10th July 2014, 3:03 PM
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

CBSE - XII Science - Physics - Semiconductor Electronics

The adjoining figure shows a common emitter transistor amplifier which uses a silicon transistor. If the quiescent emitter current is 1 mA what is the base biasing voltage?

Asked by Topperlearning User 10th July 2014, 2:32 PM
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

CBSE - XII Science - Physics - Semiconductor Electronics

If the common emitter current gain β∞ of the transistor used in the amplifier circuit shown is 200, What will the quiescent base current be equal to if the quiescent emitter current is 1 mA.

Asked by Topperlearning User 10th July 2014, 2:06 PM
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

CBSE - XII Science - Physics - Semiconductor Electronics

For a common emitter amplifier, the audio signal voltage across collector resistance 2 kΩ is 2V. If the current amplification factor of the transistor is 200 and base resistance is 1.5Ω, the input signal voltage and base current are

Asked by Topperlearning User 10th July 2014, 1:52 PM
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

CBSE - XII Science - Physics - Semiconductor Electronics

(a) In the figure given below, the input waveform is converted into the output waveform by a device 'X'. Name the device and draw its circuit diagram.     (b) State how the oscillations are sustained in a transistor oscillator.

Asked by Topperlearning User 1st July 2014, 1:06 PM
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

CBSE - XII Science - Physics - Semiconductor Electronics

A transistor is used in common-emitter circuit. When an input signal of 20 mV is added to the base-emitter voltage, the base current changes by 20μA and the collector current changes by 2 mA . The load resistance is 5 kΩ.Calculate : the current gain the input resistance  the trans-conductance the voltage gain

Asked by Topperlearning User 1st July 2014, 12:39 PM
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

CBSE - XII Science - Physics - Semiconductor Electronics

State briefly the underlying principle of transistor oscillator. Draw a circuit diagram showing how the feed back is accomplished by inductive capacitance. Explain the oscillator action.

Asked by Topperlearning User 1st July 2014, 11:07 AM
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

CBSE - XII Science - Physics - Semiconductor Electronics

A transistor amplifier circuit is operated with an emitter current of 2 mA. The collector current is 1.98 mA. What is the common emitter current gain (β2dc) of the transistor used in the circuit?

Asked by Topperlearning User 1st July 2014, 10:48 AM
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

CBSE - XII Science - Physics - Semiconductor Electronics

Explain how the input and output voltages are out of phase by 180o for a common-emitter transistor amplifier.

Asked by Topperlearning User 24th June 2014, 2:36 PM
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

CBSE - XII Science - Physics - Semiconductor Electronics

Illustrate the cut off, active, and saturation regions on a plot of V0 and Vi for a transistor switch circuit.

Asked by Topperlearning User 4th June 2014, 1:23 PM
Answered by Expert

Answer this question

×
Your answer has been posted successfully!