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The effective or root-mean-square value of a time-varying currentis, by definition, equal to the direct current that produces the same joule heat as the alternating current. That is, the Irms value of an oscillating current is found by calculating the average power in the resistor and equating it to the direct-current power. Based upon this definition, calculate Irms for square-wave currents.
A 1 Gb/s optical link is to be operated at the 1.55 m wavelength. Suppose the dispersion at the 1.55 m wavelength is 17 ps/km-nm, and the attenuation is 0.2 dB/km. For achieving a desired error probability, we are given that the receiver requires ..
A variable-speed motor having a nameplate rating of 15 hp, 890 r/min develops a torque of 25 newton meters at 1260 r/min. Calculate the per-unit values of the torque, speed, and power.
a) Draw the circuit diagram of a bridge rectifier made from pn junction diodes that will function as a negative ectifier. Show the path of current flow for both positive and negative Vin. b) Plot the Vin-Vout transfer characteristic of the circuitd..
What is the maximum symbol rate that the twisted pair line can carry without ISI? 256-QAM modulation is used on the link. How many bits are conveyed by each symbol?
If the signal amplitude across the base-emitter junction is to be limited to 10 mV, what is the corresponding amplitude of vsig and v0 Find the open-circuit voltage gain Gvo and the output resistance Rout. Use these values first to verify the value ..
In a given byte addressable computer, memory locations 10000Hto 9FFFFH are available for user programs. The first location is10000H and the last location is 9FFFFH. Calculate the following: (a) The total numbervof bytes available (in decimal)
What is the value of beta after the following code executes if the input is 5 int beta; cin >> beta; switch(beta){ case 5: beta += 5; case 1: beta++; case 5: beta += 5; break; case 4: beta += 4; }
consider an ideal amplifire with inverse feedback. explain what is meant by a virtual ground for both inverting and non-inverting connections
Research this gate design a circuit, usingit, to build the following. A dog owner wants to build an automatic animal feeder to workwhen his dog presses a switch (pressure pad). This type of devicewould automatically feed the dog when the dog press..
A source emits seven messages with probabilities 1/2, 1/4, 1/16, 1/32, 1/64, 1/128, and 1/128 respectively. Find entropy of the source. Encode this source using tartary Huffman coding, that is, encoding it using three symbols, say ‘0', ‘1', and ‘2'
If the distance between two slits is .0500 mm and the distance to the screen is 2.50 m, find the spacing between the first and third order bright fringes for light of wavelength 700 nm.
Suppose a resistor whose value is equal to the motor resistance is connected across the motor terminals and the motor is spun at 200 RPMs. What will be the voltage measured across the motor terminals
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