ELECTRICITY FOR TRADES
ELECTRICITY FOR TRADES
3rd Edition
ISBN: 9780078118630
Author: Petruzella
Publisher: RENT MCG
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Power Measurement
According to Blondel's theorem, the total power is measured with one less number of wattmeters than the number of wires present in the system. So, a single-phase and two-wire system will require one wattmeter and a single-phase and the three-wire system …
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Chapter 8.2, Problem 1RQ

Calculate the total resistance for each of the following resistor circuits:

  1. a. Series circuit: R1 = 40 Ω, R2 = 75 Ω
  2. b. Parallel circuit: R1 = 200 Ω, R2 = 200 Ω, R3 = 200 Ω
  3. c. Series circuit: R1 = 2,000 Ω, R2 = 6,000 Ω, R3 = 2,200 Ω
  4. d. Parallel circuit: R1 = 14 Ω, R2 = 32 Ω
  5. e. Series circuit: R1 = 4,700 Ω, R2 = 800 Ω, R3 = 200 Ω
  6. f. Parallel circuit: R1 = 60 Ω, R2 = 30 Ω, R3 = 15 Ω
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Chapter 8 Solutions

ELECTRICITY FOR TRADES

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