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Author Question: The diameter of wire A is greater than the diameter of wire B, but their lengths and resistivities ... (Read 393 times)

Bernana

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on: Jul 28, 2018
The diameter of wire A is greater than the diameter of wire B, but their lengths and resistivities are identical. For a given voltage difference across the ends, what is the relationship between PA and PB, the dissipated power for wires A and B, respectively?
  1. PA = PB
  2. PA < PB
  3. PA > PB

Question 2

Two resistors, A and B, are connected in a series circuit with a battery. The resistance of A is twice that of B. Which resistor dissipates more power?
  1.Resistor A does.
  2.Resistor B does.
  3.More information is needed.


Heffejeff

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Reply #1 on: Jul 28, 2018
Answer to Question 1

3

Answer to Question 2

1


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Bernana

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Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


Heffejeff

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Reply #3 on: Jul 28, 2018
Great! Please up vote :D


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