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Define the time constant of a capacitor-resistor series circuit. Such a circuit comprises a 50 μ F capacitor and a resistor, connected to a 100 V d.c. supply via a switch. If the circuit time constant is to be 5 s, determine
(a) the resistor value,
(b) the initial charging current.
determine the corediameter required for the fiber topermit its operation over the wavelength range 1.48 to 1.60um. calculate the new fiber core diameter to enable single mode transmission at a wave length of 1.30um.
A series circuit has a 1k(ohm) resistance and a 1k(ohm) inductive reactance. v1= 1 vrms a. what is the impedance of the circuit in rectangular form b. the frequency is given as 1kHz, what is the inductance of the coil L= c.
suppose that the sequence 110010011 is used as a synchronization sequence preamble to a data packet. propose a method
An ideal ac current source is applied to the input terminals of an amplifier, and the amplifier output voltage is 2 V rms. Then, a 2-kΩ resistance is placed in parallel with the current source and the amplifier input terminals, and the output vol..
A 100 Watt heater is used to melt 2 kg of solid ice at -10oC to liquid at +5oC at a constant pressure of 150 kPa. a) Find the change in the total volume of the water.
Can protons every flow through current? Even though in the overwhelming majority of cases the current flowing through a material is dominated by the movement of electrons"
A cumulatively compounded dc generator is operating properly as a flat-compounded dc generator. The machine is then shut down, and its shunt field connections are reversed
Discuss the determination of the electric field intensity due to a charge distribution by using the potential concept.
A buck-boost converter has an input voltage of 30V. The switching frequency of its transistor is 5kHz, and its duty ratio is 25%. Compute the average voltage across the load.
Suppose that the machining operation requires 1 kW, that the tool machine ihas 90 percent efficiency, and that the supply current is 14 A rms with a power factor of 0.8. Find the AC machine efficiency.
The (uniform) area density of defects for a CMOS fabrication process is 0.1 cm-2. Estimate the yield for integrated circuits with the following dimension: 4mm x 4mm, 6mm x 8mm, and 9mm x 12mm.
When a type of integrated circuit is tested at 185 degrees Celcius, 10% of the circuits fail within two weeks with VDD = 1.0V. Estimate the 10% lifetime at 95 degrees Celcius and 1.0V assuming Ea = 1.0eV.
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