17. Voltage n be dstermined by observing the direction of current fhow through t

Question

17. Voltage n be dstermined by observing the direction of current fhow through the circuit a. drop b. polarity A(n)- -ground symbol is used to·ymbolize a ground point-de by physically driving an a rod or pipe into the ground a. chasis b. circuit c. earth 18. d. supply 19. Apoint that is used as a common connecticn for other parts of a circuit is called a poim. a. chassis b. circuit c. ground d. supply 20. A() voltage is a voltage that is positive with respect to ground. b. below-ground 21. Circuits that have more than one path for current flow are circuits a. paralle b. series of the currents through all the branches. In a parallel circuit, the total current flow is equal to the a. difference b. average . sum d. quotient 22. 23. In a parallel circuit, the total resistance is_ value resistor larger than the lowest b. a. less than the lowest c equal to the largest d. equal to the lowest 24. The term "load" refers to the amount ofin a circuit branch. a. current b. resistance c. voltage d. wattage 25. An increase in_ not resistance, results in an increase of load a. power

Explanation / Answer

17. (b) Polarity  

(current is from high potential to lower potential )

18. (c) earth (to make V = 0 )

19. (c) ground (for ground point, V = 0 )

20. (a) above ground (for ground V = 0)

21. (c) combination

22. (c) sum

23. for parallel, 1/Req = 1/R1 + 1/R2 + 1/R3.....

Ans(b) less than the lowest

24/ (b) resistance

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