# 13 Popular Electrical Wiring Residential Chapter 4 Review Pictures

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**13 Popular Electrical Wiring Residential Chapter 4 Review Pictures** - Question 10 to calculate capacitance, which of the following formulation is real correct solution: v = q/c question eleven if a modern of 12.5a flows for a time of 2 minutes calculate the amount of charge transferred correct solution: 1500 coulombs recollect the price is q and q=ixt question 12 if a rate of 500 micro coulombs is stored in a 25 micro farad capacitor, what's going to the p.D. Across the plates be? Correct solution: 20 volts question thirteen calculate the price if a two hundred micro farad capacitor is conected to a two hundred volts supply accurate solution: 0.04 coulombs query 14 calculate the equivalent capacitance of 3 capacitors whilst connected in series. There values are : 5 micro farad, 10 micro farad and 30 micro farad accurate solution: 3 micro farad query 15 the electrical field power of a capacitor is determined through the voltage between the plates divided by way of the thickness of the dialectric. But what devices are electric powered subject electricity measured in ? Accurate solution: volts in line with metre recall e = u/d question 16 which is accurate components for calculating the strength saved in a capacitor accurate solution: e = zero.5cu2 question 17 as a wellknown rule, whilst a capacitor is completely charged what's going to it block? Accurate answer: a d.C. Present day query 18 the capacitor fitted inside the starter transfer of a fluorescent mild becoming is for what reason ? Correct solution: to suppress radio frequency interference .

Question 19 fixed capacitors can be placed into 3 wellknown lessons related to their dialectrics which magnificence could an electrolytic capacitor be in ? Accurate solution: polarised capacitor query 20 if the height voltage is 1 volt ac what is the rms cost accurate answer: 0.707v .

Question five calculate the power stored in a two hundred micro farad capacitor linked to a 200 volt supply accurate solution: 4 joules consider e = 0.5cu2 query 6 if 3 10 micro farad capacitors are linked in series, the fee on each capacitor might be accurate solution: the identical query 7 why are discharge resistors regularly related to massive capacitors accurate solution: to safely burn up the charge held for this reason decreasing shock hazard query 8 what's the formulation had to calculate the energy stored in an inductor? Correct answer: e = 0.5li2 question 9 on an ac mains deliver of 230volts, what's the minimum voltage fee which capacitors have to be rated at? Accurate answer: four hundred volts .