13 A typical wall outlet voltage in the United States is 120 volts. Personal MP3 players require much smaller voltages, typically 354.8 mV. If the number of turns in the primary coil is 1353, calculate the number Ns of turns on the secondary coil of the adapter transformer. Type your answer...

13 A typical wall outlet voltage in the United States is 120 volts. Personal MP3 players require much smaller voltages, typically 354.8 mV. If the number of turns in the primary coil is 1353, calculate the number Ns of turns on the secondary coil of the adapter transformer. Type your answer...

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter23: Electromagnetic Induction, Ac Circuits, And Electrical Technologies

Section: Chapter Questions

Problem 47PE: (a) What is the voltage output of a transformer used for rechargeable flashlight batteries, if its...

See similar textbooks

Similar questions

(a) What is the resistance of a 220-V ac short circuit that generates a peak power of 96.8 kW? (b) What would the average power be if the voltage were 120 V ac?
A transformer is used to provide voltage to a neon sign. The input voltage is 120 V and the output voltage is 600 V. The number of turns on the primary coil of the transformer is 300. The current supplied to the transformer is 2.5 A. What is the number of turns on the secondary coil and the current used in the neon sign? a. The number of turns in the secondary coil is 240 and the current in the sign is 2.5 A b. The number of turns in the secondary coil is 60 and the current in the sign is 2.5 A c. The number of turns in the secondary coil is 240 and the current in the sign is 0.5 A d. The number of turns in the secondary coil is 60 and the current in the sign is 0.5 A e. The number of turns in the secondary coil is 1500 and the current in the sign is 0.5 A
The electricity supplied through a city power line is transmitted at 14,300 V. On each city block there are one or more neighborhood transformers on utility poles that transform the potential difference to 120 V, as used in homes and businesses. If the number of turns on the primary is 8580 turns how many should be on the secondary? I
In an ideal transformer, it is known that the primary coil has 200 turns and the secondary coil has 10 turns. A. If the secondary coil has voltage of 10 V what is the voltage in the primary coil? B. When we say that U.S AC voltage is 120 V what does this voltage refer to? Name the voltage.
Transformers: Part A- The primary coil of a transformer contains 100 turns; the secondary has 200 turns. The primary coil is connected to a size-AA battery that supplies a constant voltage of 1.5 volts. What voltage would be measured across the secondary coil? zero 0.75 VV 1.5 VV 3.0 V Part B- A transformer is intended to decrease the value of the alternating voltage from 500 volts to 25 volts. The primary coil contains 200 turns. Find the necessary number of turns N_2 in the secondary coil. (Express answer in terms of N_2) Part C- A transformer is intended to decrease the value of the alternating current from 500 amperes to 25 amperes. The primary coil contains 200 turns. Find the necessary number of turns N_2 in the secondary coil. (Express answer in terms of N_2.) Part D- In a transformer, the primary coil contains 400 turns, and the secondary coil contains 80 turns. If the primary current is 2.5 amperes, what is the secondary current I_2? (Express answer in terms…
A transformer is used to provide voltage to a neon sign. The input voltage is 120 V and the output voltage is 600 V. The number of turns on the primary coil of the transformer is 300. The current supplied to the transformer is 2.5 A. What is the number of turns on the secondary coil and the current used in the neon sign? The number of turns in the secondary coil is 60 and the current in the sign is 2.5 A The number of turns in the secondary coil is 240 and the current in the sign is 0.5 A The number of turns in the secondary coil is 60 and the current in the sign is 0.5 A The number of turns in the secondary coil is 1500 and the current in the sign is 0.5 A The number of turns in the secondary coil is 240 and the current in the sign is 2.5 A
A typical wall outlet voltage in the United States is 120 volts. Personal MP3 players require much smaller voltages, typically 104.2 mV. If the number of turns in the primary coil is 6908, calculate the number of turns Ng on the secondary coil of the adapter transformer. Ns turns
The charger for a cell phone contains a transformer that reduces 120-V (or 240-V) ac to 5.0. Vac to charge the 3.7-V battery. (It also contains diodes to change the 5.0-Vac to 5.0-Vdc.) Suppose the secondary coil contains 30 turns and the charger supplies 700mA. Calculate: A. The number of turns in the primary coil. B. The current in the primary coil. C. The power transformed.
A transformer has 1000 turns in the primary coil and 100 turns in the secondary coil. If the primary coil is connected to a 120 V outlet and draws 0.050 A, what are the voltage and current of the secondary coil?A. 1200 V, 0.0050 AB. 1200 V, 0.50 AC. 12 V, 0.0050 AD. 12 V, 0.50 A
9. At its normal operating speed, an electric motor draws only 13.0% of the current it draws when it just begins to turn. The motor is plugged into a 115-V socket. What back emf does the motor generate at its normal operating speed? V
The following resistors are connected in a DC circuit: R₁ = 214 2 R₂=182 2 R3 = 335 2 . . a. Calculate the total resistance if each resistor is connected in series. b. Req= BB 2 Ω Calculate the total resistance if each resistor is connected in parallel. Req= 52
The secondary coil of a step-up transformer provides the voltage that operates an electrostatic air filter. The turns ratio of the transformer is 47:1. The primary coil is plugged into a standard 120-V outlet. The current in the secondary coil is 1.5 x 10-3 A. Find the power consumed by the air filter. Number i eTextbook and Media Units