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The power in watss disspiated by a resistor is given by P=IV. The resistors used are 1 watt resistances i.e. they are capable of dissipating a maximum of 1 watt without overheating. What is the maimum voltage that can be put across a 1 watt, 36 Ω resistor.
Suppose L=25mH, but the resistance value,R, is not specified. Find a condition on R so that the circuit is strictly BIBO unstable (i.e., not even marginally stable). Hint: you might not be able to purchase such a resistor at Radio Shack
A six pole,60 Hz synchronous motor is connected to an infinit bus of 15 KV through a transmission line.The synchronous reactance of the motor is 5 ohm ,and the inductive reactive reactance of the transmission line is 2 ohm
Design a 4-bit circuit for 2s-complement, base on the formula below, using only inverters, 2 input AND gates and 2 input OR gates. Design your circuit to be as fast as possible. What is the worst-case propagation delay for this circuit
Derive the simplest sum-of-products expression for the function f(x1, x2, x3, x4, x5) = x1'x3'x5' + x1'x3'x4' + x1'x4x5 + x1x2'x3'x5. (hint: use the consensus property- xy + yz + x'z = xy+ x'z.)
Design combination circuits that generates the -ve of a give 4-bit +v signed number, e.g. if it is +2 the circuit will generate -2 and if it is -2 the circuit will not change it. assuming that the signed number is in 1's complement representation.
A four-pole, 450-kW, 4.6-kV SHUNT GENERATOR HAS ARMATURE AND FIELD RESISTANCES OF 2 AND 333 Ohms. The generator is operating at the rated speed of 3,600 r/min.
A current amplifier with R=9 kohm Ro=1 kohm and Ais=100 is connected between a 8 V voltage source with a source resistance of Rs=1 Kohm and a load resistance of RL=9 Kohm.
The heater element of an electric kettle has a constant resistance of 100 Ω ohm and the applied voltage is 250 V. Calculate the time taken to raise the temperature of one litre of water from 15°C to 90°C assuming that 85% of the power input
A 60 hp, 3-phase motor absorbs 50 kW from a 600 V, 3-phase line. If the line current is 60 A, calculate the following: (a) The efficiency of the motor (b) The apparent power absorbed by the motor (c) The reactive power absorbed by the motor
If we define the resolution of a Digital-to-Analog Conversion (DAC) device to be the reciprocal of its number of logic states in percentage, what will be the resolution of an 8-bits DAC device
1. Explain the basic principles of classical conditioning using an experiment to illustrate how the principles are used. 2. In the operant conditioning school of behaviorism, what is partial reinforcement. Explain the four main kinds of partial rein..
Three single-phase, two-winding transformers, each reated 450 MVA, 20 kV/288.7 kV with leakage reactance Xeq=0.12 per unit, are connected to form a three-phase bank. The high voltage windings are connected in Y with solidly grounded neutral.
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