Physics Spl

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As per NCERT, An amplifier increases the amplitude of the input signal and gives out an amplified output. The transistor works as amplifier in the active region of transfer characteristics curve.
An oscillator makes use of capacitor-inductor pair to power the amplifier.
Now the main difference is that an external output has to be supplied to the amplifier for it to work. Whereas, in case of oscillator you need not supply external signal. The oscillator takes a portion of output signal from amplifier and use it as input to amplifier through the capacitor-inductor pair.

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Dear Rajdip,
You may refer to the link below:
http://bit.ly/1VFWc5S

follow these steps ::1.ask him to go through all the chapters taught till date. 2.complete at least 80% of the modules or booklets provided by classes.3.after this ask him to solve extra problems after classes from books in class library. .4.stop worrying coz now he has become topper in physics!! do same for maths coz if physics is weak naturally maths is more or less weak!!

Hi
The official site for admission info about germany is daad.de. You will get a listing of courses in master's in physics when you search it.
Check their individual requirement and prepare accordingly. In case you are unable to get any specific info, feel free to post here.

Hi
You may choose GIS, Robotics or Data analytic course.