Two resistor ,5 kohms and 20 kohms are at 27 degree C. Calculate the thermal noise voltage for a 10-kHz bandwidth if they are in series
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- Two resistors 15 kΩ and 20 kΩ are connected at a temperature of 20°C. Calculate the equivalent noise voltage and power contributed by two resistors for a 2 Mhz bandwidth if connected in a.) series b.) parallel. Provide circuit diagramThe circuit of the given figure represents the first three stages of a typical AM or FM receiver. Find the following: a.) Total power gain APT(dB) b.) Pin(dBm) c.) Pout(dBm)Two resistors, 20kΏ and 50kΏ are at 290 K temperature. Calculate for the rms noise voltage having a bandwidth equal to 100kHz, the thermal noise voltage for the two resistors connected in parallel.
- Design (only the block diagram) an Armstrong indirectly FM modulator to generate an FM carrier with a carrier frequency of 98.1MHz and df (frequency deviation) =75kHz.A narrowband FM generator is available at a carrier frequency of 100 KHz and a (frequency deviation) df=10Hz.The stockroom has an oscillator with an adjustable frequency in the range of 10 to 11MHz.There are plenty of Frequency multipliers.Which is better, which is bigger, and why between BW FM , BW AM AND AM ,FM2) Find the real and imaginary part of the total equivalent circuit impedance at the signal frequency of 1 MHz (Unit: Ohm)
- Suppose the noise power at the input to a receiver is 5 nW in the bandwidth of interest. What would be the required signal power for signal–to–noise ratio of 30 dB? full solution thank you for the help!2. The output impedance of 600 ohms radio transmitter with signal strength reading on a meter of impedance 75ohms by 0.81 neper of unbalance non-symmetrical Pi-pad attenuator circuit. Determine the required resistor values to design this attenuator.If the bandwidth of a signal is 50KHz and its lowest frequency is 10KHz, calculate its highest frequency. a. 60KHZ b. 80KHz c. 5KHz d. 40KHz
- A) what is the relationship between frequency and eavelenght? ( direct or inverse) B) what is the relationship between period and frequency? ( direct or inverse)Determine the noise voltage of an amplifier operating over a 6 MHz bandwidth has a 120 ohm input resistance. It is operating at 27 degrees Celsius and has an input signal of 4 microvolts rms.If the bandwidth of a signal is 30KHz and its highest frequency is 70KHz, calculate its lowest frequency. a. 60KHZ b. 5KHz c. 40KHz d. 80KHz