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It is desired to run the motor in the previous problem with a power factor of unity. To achieve this, a capacitor C is connected in parallel across the motor, which results in a circuit like that shown in Fig. 2.13. Calculate the value of C to achieve this condition.
The characteristic impedance is 75. Use CAD to plot the insertion loss versus frequency.
Design a circuit which provides 20 dB of gain. The 3dB filter points should be 50 HZ and 50 KHZ. Use a bipolar power supply (+/- 9V). Your circuit should be able to provide a minimum of 5 Watts of output power.
If engines are randomly selected one at a time and tested, find the probability that the first non-defective engine is found on the second trial.
An input signal V1 is applied to the sum port of a 180? hybrid, and another signal V4 is applied to the difference port. What are the output signals?
where x is a state variable and r is an input variable. Perform a change of variables in r, i.e., r (t) --> u (t),where the new system is linear without any approximations (hint: assume x (t) ismeasurable)
how can you build a selective gate? using a presettable divide-by-n counter and a gating circuit that will gate the
If $200 is placed at the end of each year for 10 years in an account earning 7% interest compounded annually, what amount will be accumulated at the end of 10 years?
A 40-hp, 500 V, 1200-rpm DC shunt motor has rotationallosses of 2000 W at rated speed. The armature resistance is 0.46Ω and the field resistance is300Ω. A) Calculate the armature current when the motor is delivering rated load at rated voltage and..
You are working with a design team on a new product and are assigned to design the power supply. The requirements for the power supply are as follows: Input AC: 115 V AC +- 10%, 50-60 Hz Outputs: +5 V DC at 100 ma, +-12 V DC
Design a 4-bit down-counter that has three control inputs: cnt enables counting up, clear syncrhonously resets the counter to all 0s, and set syncrhonously sets the counter to all 1s a) using a parallel load register as a buildi..
A DC motor has the following parameters: Number of armature conductors = 60, length of rotor = 30 cm, radius of rotor = 10 cm, field flux density = 1 T, armature resistance = 1.2-ohm. Neglect the armature inductance. The maximum armature current r..
you have researched a new type of switch and proved that upgrading your switches to this model is feasible. what step
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