Ac circuits Study guides, Class notes & Summaries

In capacitors, what is the purpose of the dielectric? - ANSWER-Prevent arcing within the capacitor Which of the following is true about capacitors in AC circuits? - ANSWER-Current leads voltage all the time What describes a capacitor s ability to store an electrical charge? - ANSWER-Capacitance which of the following statements is correct about polarized electrolytic capacitors? - ANSWER-Voltage polarity must be correct What is the time constant for a circuit with 150k ohms and 2 mic...

Which of the following is true with regard to switchboards Switchboards are used to subdivide large blocks of power When installing wiring within switchgear, use self adhesive cable ties every ___. 12" (300mm) The maximum voltage that a piece of equipment can withstand is known as its ____. Basic impulse insulation level (BIL) Bolted pressure switches are often used in place of ___. Circuit breakers A transformer's temperature rise rating refers to ___. The maxim...

Unit 15: Electrical Circuits and their Applications C&D C: Examine AC and DC production and health and safety aspects domestic and industrial appliances D: Examine the uses of transducers, sensors and other measurement devices. BTEC Level 3 Extended Diploma in Applied Science At Distinction grade level. With hand drawn graphs and with my OWN research (plagiarism-free). Please message me if you have any doubts- happy to help!

COSC 325 – Final | Exam Questions With Verified Correct Answers| Latest Update Conductor - ANSWER material that has very little resistance and permits electrons to move through it easily Insulator - ANSWER any material that has a very high resistance and resists the flow of electrons Generated electricity - ANSWER the alternating current (AC) created by power plant generator Three phase - ANSWER three distinct wave cycles, 3-wires, 415V Single phase - ANSWER power supply has o...

Unit 15: Electrical Circuits and their Applications C C: Examine AC and DC production and health and safety aspects domestic and industrial appliances BTEC Level 3 Extended Diploma in Applied Science At Distinction grade level. With hand drawn graphs and with my OWN research (plagiarism-free). Please message me if you have any doubts- happy to help!

A(n) __________ is a graph showing how an electrical value changes over a period of time. WAVEFORM Ref: 1.09 The ac waveform is called a(n) __________ wave. SINE Ref: 1.14 Frequency is the number of __________ an electrical system goes through in a unit of __________. CYCLES; TIME Ref: 1.19 In what unit is frequency measured? HERTZ (Hz) Ref: 1.20 The number of cycles generated in one complete revolution of an alternator equals half the number of __________. POLES...

Level 2 Module 1 Alternating Currents 2:1 What is the step-down turns ratio of a transformer with 200 turns in the primary and 100 turns in the secondary? induced high voltage Opening the secondary of a CT under load will cause a dangerous level of___. 40Hz What is the hertz rating of an AC circuit if the frequency is 20 cycles per 1/2 second? 340V Given: A circuit has an rms voltage of 120VAC. What is the peak-to-peak voltage? 175V A circuit has a peak voltage of 275V....

Dale Crane Questions for AC Circuits questions with correct answers.

The 2 main considerations concerning the existing cabling are? - correct answer Grandfathered system Abandoned cable 11-25 The type of cutover where cross-connects are relocated one pair after another until completed is called a - correct answer rolling cut 11-28 Which practice involves moving the customer to a temporary office space until their section of the retrofit is completed and then moving them back to their recabled office space? - correct answer Swing space phasing Whic...

Electricity produced by magnetism is ______ CORRECT ANSWER AC the intensity of current produced by a conductor moving through a magnetic field is determined by the ______ at which the line of flux are cut CORRECT ANSWER rate one complete sequence of events in alternating current consisting of starting a stopping the current in both directions is called one ______ CORRECT ANSWER cycle when electricity is to be carried for long distances over a power line, its ______ is stepped up to a hi...