3. True or false? The purpose of the NEC is to accommodate future expansion of electrical use. A. True В. False NEC:. 4. The NEC does not cover any of the following, except: A. Installations in ships B. Installations of optical fiber raceways C. Installations underground in mines D. Installation of railways for generation of power used exclusively for operation of rolling stock NEC: 5. Which article of the NEC deals specifically with lighting systems operating at 30 volts or less? A. 220 B. 411 C. 517 D. 553 6. By which of the following organizations is NEC sponsored? A. National Fire Protection Association B. Society of Manufacturing Engineers C. IEEE D. National Science Foundation

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A: Circuit is given as:

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A: Given a parallel RC circuit with ET = 120 V, R = 420 Ω, and XC = -j330 Ω   because {Xc = -jωc}

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A: In this question we need to find a charge across capacitor C1

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Q: Error: the deviation of the measured value from the

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A: Capacitor stores electrical energy in form of elctro static field.

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A: Given :    In the question they are asking the initial voltage and current on the capacitor and…

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A: The solution can be achieved as follows.

Q: Questions: 1. Add A + A 2. Multiply B*B 3. Simplify (A+B)(A+C)

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Q: Question 9 The apparent power is equal to the reactive power in an a resistive circuit. O True False

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A: Find Cx and Rx for the capacitor comparison bridge if this bridge is balanced for : R1=1 KΩR2=4…

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A: The solution is given below

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A: we will draw phasor diagram to find angle between voltage and current through resistor.

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A: The solution is given below The correct option is (d) critically damped

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A: The solution is given below