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Author Question: An electrical current is influenced by which of the following? 1. Voltage 2. Resistance 3. ... (Read 58 times)

HudsonKB16

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on: Jul 16, 2018
An electrical current is influenced by which of the following?
 
  1. Voltage
  2. Resistance
  3. Electromotive forces
  4. The number of insulators
  a. 1 and 2 c. 3 and 4
  b. 2 and 4 d. 1, 2, 3, and 4

Question 2

A series circuit contains a total resistance of 100. If the circuit has three resistors and one of the resistors is 40 , what is the combined resistance of the last two resistors?
 
  a. 60 c. 140
  b. 2.5 d. 0.04


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BUTTHOL369

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Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: A
Electrical currents are influenced by voltage (the electromotive force pushing electrons forward) and the resistance electrons must overcome along the conductive pathway. An insulator is the material surrounding the conductive material and is usually made of plastic.

Answer to Question 2

ANS: A
According to Kirchhoff's laws regarding series circuits, total resistance is equal to the sum of all resistors in the circuit. If the circuit has three resistors, total resistance = A + B + C. Therefore, 100 = A + B + C. If one resistor is 40 , then 100 = 40 + B + C and the sum of B + C must equal 60 .


HudsonKB16

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Reply 2 on: Jul 16, 2018
Great answer, keep it coming :)

bitingbit

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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