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Discuss why phasor analysis can only be performed on single-frequency circuits. For multiple frequencies what type of analysis must be performed.
a) If the parallel inductor is replaced with a single inductor, what would be the value of the inductor b) What would be the initial current through the equivalent inductor c) Find i_1(t) and i_2(t) and verify that they satisfy using the Kirchoff's C..
Design a passive first-order RC low-pass filter with a cutoff frequency fH = 10 kHz. Derive the step response and voltage transfer function.
A shunt dc motor has RA = 0.1-ohm and VT = 440 V. For an output power of 16.1 hp, nm = 1,213 rpm and IA = 103 A. The field current remains constant. Find the the rotational power loss in hp.
A serial transmission is set up for 8 bits with odd parity. The first two bytes of data are 01110111 with parity bit 1 and 01101010 with parity bit 0. From this we know that there are no errors in transmission.
4H-SiC is doped with 2 x 1017 cm-3 nitrogen donor atoms (Ec - Ed = 90meV). Use Nc = 4 x 1020 cm-3. a. Calculate the electron density at 300 K. b. Calculate the hole density at 300K after adding 2 x 1018 cm-3 aluminum acceptor atoms
1. The current in a circuit is 1 amp. What will the current be when the voltage is increased by 50% 2. A 10ohm resistor is connected across a 12 V battery. How much current is there through the resistor
An object of mass m = 0:1 kg is dropped from a high tower. Suppose the magnitude of the force due to air resistance is 0:98v2. (The gravitational constant is g = 9:8 m s2 ). a) Write down the dierential equation satisfied by velocity.
A Whetstone bridge has a strain gage in the lower right leg with a 120 ohm nominal resistance. It is mounted on steel with a Modulus of Elasticity equal to 30x106. The other resistors are equal to 120 ohms.
Design a signal conditioning circuit for a K-type thermocouple, which produces output voltage of 0V-5V using a three terminal solid-state temperature sensor for reference junction compensation. The sensitivity of the sensor is 4mV/C.
A manufacturing plant has a 600V, 60Hz supply and the following loads: Lights: 24kW Electric furnace: 4.8 + j6.4%u03A9 with a current of 150A Motor loads, 160kW at 0.8 Power Factor, lagging.
A certain antenna installation using a transmitting frequency of 1250 kHz uses an insulated vertical tower of height 200 feet. For a 25 kW transmitter power, calculate the electric field strength at a location A at a distance of 25 km.
What degree of matching in emitter area is required for the base-emitter voltages of two bipolar devices with identical collector currents to have a difference of less than 5.0mV Use VT= 25.85mV.
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