Example 2: calculate the RMS noise voltage arising from thermal noise in two resistors 100 & 150 resp. at T= 600 K within a bandwidth of 1MHZ if:

Q: A series RL circuit connected to an AC voltage sinusoidal source of 100 V peak voltage and 1 kHz…

A:

Q: You read 10 Vpk on the oscilloscope across a resistor in a series RC circuit. With a 15 Vpk AC…

A: Current in resistor and capacitor is same as thay are connected in series with each other.  Take…

Q: 5. For a 1Vpp sinusoidal input, at a frequency of 1KHz, draw the output for each circuit.

A:

Q: What will be the impedance of an inductor of inductance 15.5 mH when it's connected to an ac source…

A: The impedance of an inductor of inductance L can be expressed as

Q: R = 250R and the sinusoidal alternating emf revice operates at Em = 40 v and fo = 55 Hz a) What is…

A: The resistor, The emf, The frequency,

Q: The frequency of the voltage given by the equation e=120 sin754t is:

A:

Q: If V1 is a sinusoid with amplitude = 1mV and freq=1kHz, choose a combination of V2, R1, R2, and Rf…

A:

Amplitude modulation

A radio signal can carry information in the form of sound or image for broadcasting or communication. For it to be sent to a greater distance, the signal must be changed or modulated in some way. One of the easiest way is to change the amplitude of the signal with variations of the video or the audio signal. This is called Amplitude Modulaton. In this modulation information of message is carried in amplitude of carrier signal.