The rechargeable batteries for a laptop computer need a much smaller voltage than what a wall socket provides. Therefore, a transformer is plugged into the wall socket and produces the necessary voltage for charging the batteries. The batteries are rated at 9.0 V, and a current of 192 mA is used to charge them. The wall socket provides a voltage of 120 V. (a) Determine the turns ratio of the transformer. (b) What is the current coming from the wall socket? (c) Find the average power delivered by the wall socket and the average power sent to the batteries. (a) N/N₂= Number i (b) lp= (c) Pp= P₁ = Number i Number i Number i Units Units Units Units

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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The rechargeable batteries for a laptop computer need a much smaller voltage than what a wall socket provides. Therefore, a
transformer is plugged into the wall socket and produces the necessary voltage for charging the batteries. The batteries are rated at
9.0 V, and a current of 192 mA is used to charge them. The wall socket provides a voltage of 120 V. (a) Determine the turns ratio of the
transformer. (b) What is the current coming from the wall socket? (c) Find the average power delivered by the wall socket and the
average power sent to the batteries.
(a) N/N₂= Number i
(b) lp=
(c) Pp=
Ps=
Number i
Number i
Number i
Units
Units
Units
Units
Transcribed Image Text:The rechargeable batteries for a laptop computer need a much smaller voltage than what a wall socket provides. Therefore, a transformer is plugged into the wall socket and produces the necessary voltage for charging the batteries. The batteries are rated at 9.0 V, and a current of 192 mA is used to charge them. The wall socket provides a voltage of 120 V. (a) Determine the turns ratio of the transformer. (b) What is the current coming from the wall socket? (c) Find the average power delivered by the wall socket and the average power sent to the batteries. (a) N/N₂= Number i (b) lp= (c) Pp= Ps= Number i Number i Number i Units Units Units Units
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