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Author Question: Two resistors with resistances of 5.0 and 9.0 are connected in parallel. A 4.0- resistor is then ... (Read 127 times)

MGLQZ

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on: Jul 29, 2018
Two resistors with resistances of 5.0  and 9.0  are connected in parallel. A 4.0- resistor is then connected in series with this parallel combination.
 
  An ideal 6.0-V battery is then connected across the series-parallel combination. What is the current through (a) the 4.0- resistor and (b) the 5.0- resistor?

Question 2

Suppose you left five 100-W light bulbs burning in the basement for two weeks. If electricity costs 10.0/kWh,
 
  (a) how much did the electricity cost (to the nearest dollar) to leave those bulbs on, and (b) how many joules of electrical energy did they consume?


anyusername12131

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Reply #1 on: Jul 29, 2018
Answer to Question 1

(a) 0.83 A (b) 0.53 A

Answer to Question 2

(a) 17 (b) 6.05  108 J


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