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

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

Publisher:Raymond A. Serway, Chris Vuille

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)...

See similar textbooks

Related questions

Q: (a) What is the emf across the inductor immediately after the switch is opened? V (b) When does…

A: Detailed solution is given below: Please UPVOTE dear sir

Q: The transformer of a neon lamp operates from an alternating source of 220V. The light bulb requires…

Q: You are told that the primary coil in a transformer has a power of 100 Watts. The secondary coil is…

Q: The rechargeable batteries for a laptop computer need a much smaller voltage than what a wall socket…

A: The potential of the batteries is VB=9.0 V The current in the batteries is IB=249 mA The potential…

Q: A typical wall outlet voltage in the United States is 120 volts. Personal MP3 players require much…

Q: After being closed for a long time, the switch S in the circuit shown in the figure below is thrown…

A: The circuit diagram is shown below.

Q: A generating station is producing 1.4 x 106 W of power that is to be sent to a small town located…

A: Given: P = 1.4*106Wd = 5.6 kmr = 4.5*10-2 Ω/KmV=1600 VNs/Np=100/1

Q: The generator of a car idling at 1.582E+3 rpm produces 15.3 V. What will the output be at a rotation…

A: Given value--- angular speed 1 = 1.582E+3 rpm. Voltage 1 = 15.3 V. angular speed 2 = 2.886E+3 rpm.…

Q: transformer is used to step down 160 V from a wall socket to 9.3 V for a radio. (a) If the primary…

Q: A motor has an armature resistance of 3.75 Ω.If it draws 8.20 AA when running at full speed and…

Q: Problem 8: Suppose a large power plant generates electricity at 12.0 kV. Its old transformer once…

A: Part (a)Find the relation between current, power and voltage.

Q: From time to time, transformers explode. If your neighborhood has ever lost power all at once, this…

A: We are given voltage in primary and secondary coils. We are given turns in secondary coil. We first…

Q: A transformer is to be used to provide power for a computer disk drive that needs 5.0 V (rms)…

A: Given that the value of primary and secondary voltage and secondary Current. Then We have to…

Q: A transformer has Np = 500 turns on the primary coil and Ns = 60 turns on the primary coil…

A: The number of turns in secondary winding should always be less than the number of turns in the…

Q: A portable x-ray machine is designed to operate on normal 110V AC power. Its maximum capacity is…

A: Voltage, V1 = 110 VVoltage, V2 = 110 KV = 110000 VCurrent, I = 100 mATurn ratio, N2/N1 = ?

Q: An electric power station is producing 280 kW of power that is to be sent to a small town located…

Q: A generating station is producing 1.1 x 10° W of power that is to be sent to a small town located…

A: Power generated (P) = 1.1×106 Watt distance (d) = 7.5 km resistance per unit length of each wire =…

Q: A transformer has 400 turns on its secondary and 100 turns on its primary. The primary is connected…

A: Given: The number of turns in primary coil is N1=100 The number of turns in secondary coil is…

Q: The rechargeable batteries for a laptop computer need a much smaller voltage than what a wall socket…

Q: transformer has 558 turns on its primary and 101 turns on its secondary. (b) If a voltage of 125 V…

Q: The rechargeable batteries for a laptop computer need a much smaller voltage than what a wall socket…

A: Vs = 9 V Is = 252 mA = 0.252 A Vp = 120 V

Q: The generator of a car idling at 1200 rpm produces 14.2 V. What will the output be at a rotation…

A: Given data:- The speed of the generator is N1=1200 rpm The another speed of the generator is N2=2800…

Q: A cassette recorder uses a plug-in transformer to convert 120 V to 12.0 V, with a maximum current…

Q: The rechargeable batteries for a laptop computer need a much smaller voltage than what a wall socket…

Q: (a) How much current flows through the motor when it is running smoothly? (b) Suddenly the string…

A: This problem is using two basic formulas of Electrodynamics 1.I=VR , where V = Voltage I=Current…

Q: A motor has coils with a resistance of 25 Ω and operates from a voltage of 241 V. When the motor is…

Q: A generating station is producing 1.4 x 106 W of power that is to be sent to a small town located…

A: Power generated (P) = 1.4×106 Watt distance (d) = 5.6 km resistance per unit length of each wire =…

Q: (a) What is the voltage output of a transformer used for rechargeable flashlight batteries if its…

Q: The generator of a car idling at 1.638E+3 rpm produces 11.6 V. What will the output be at a rotation…

Q: If the current in an inductor is doubled, by what factor is the stored energy multiplied?

A: If the current in an inductor is doubled, by what factor is the stored energy multiplied?

Q: A plug-in transformer, as shown, supplies 9.00 V to a video game system. (a) How many turns are…

A: a. the number of turns in the secondary coil can be calculated from the transformer equation.

Concept explainers

Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.

Question

100%

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

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Given Data

Part (a)

Part (b)

Part (c)

Trending now

This is a popular solution!

Step by step

Solved in 4 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

A 140-mH inductor and a 5.50-0 resistor are connected with a switch to a 6.00-V battery as shown in the figure below. (a) After the switch is first thrown to a (connecting the battery), what time interval elapses before the current reaches 220 mA? ms (b) What is the current in the inductor 10.0 s after the switch is closed? A (c) Now the switch is quickly thrown from a to b. What time interval elapses before the current in the inductor falls to 160 mA? ms
A plug-in transformer supplies 9.00 V to a video game system. (a) How many turns are in its secondary coil if its input voltage is 120 V and the primary coil has 423 turns? turns(b) What is its input current when its output is 1.33 A? A
Suppose a large power plant generates electricity at 12.0 kV. Its old transformer once converted this voltage to 325 kV. The secondary coil of this transformer is being replaced so that its output can be 755 kV for more efficient cross-country transmission on upgraded transmission lines. V1= 325 kV V,= 755 kV (a) If the overall power output is 1000.0 MW and line resistance is 2.00 N, what was the power loss, in watts, in the old power lines which left the plant? Ploss,1 = b) If the overall power output is 1000.0 MW and line resistance is 2.00 Q, what is the power loss, in watts, in the new power lines which leave the plant? Ploss,2=
A typical wall outlet voltage in the United States is 120 volts. Personal MP3 players require much smaller voltages, typically 302.1 mV. If the number of turns in the primary coil is 35753575, calculate the number of turns NS on the secondary coil of the adapter transformer.
The transformer on a utility pole steps the voltage down from 10000 V to 220 V for use in a college science building. During the day, the transformer delivers electric energy at the rate of 10.0 kW. a) Assuming the transformer to be ideal, during that time, what are the primary and secondary currents in the transformer? b) If the transformer is only 90 % efficient (but still delivers electric power at 10.0 kW), how does its input current compare to the ideal case? c) At what rate is heat lost in the nonideal transformer? d) If you wanted to keep the transformer cool and to do this needed to dissipate half of the joule heating of part c) using water cooling lines (the other half is taken care of by air cooling), what should be the rate of flow (in liters per minute) of water in the lines? Assume the input cool water is at 68∘∘F and the maximum allowable output water temperature is 98∘∘F} .
A transformer outside of a business steps the average voltage down from 3600 V to 120 V. The transformer delivers 1.50 × 106 W to the business at 82.0% efficiency. (Give answers to 3 sig.figs.) Find … (a) the power delivered to the primary, (b) the current in the primary, and (c) the current in the secondary.