Question

A transformer has 380 primary turns and 1140 secondary turns. The input voltage is 120 V...

A transformer has 380 primary turns and 1140 secondary turns. The input voltage is 120 V and the output current is 16.5A . Assume 100% efficiency.

A) What is the output voltage?

B) What is the input current?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Np = number of primary turns = 380

Ns = number of secondary turns = 1140

Ep = input Voltage = 120 V

Is = 16.5 A

Ip = input current

Es = output voltage

since efficiency is 100%

so Es Is = Ep Ip

Es Is = 120 * Ip

Es = 120 * (Ip/Is)

Es = 120 * (Ns/Np)                    ( since Ip/Is = Ns/Np )

Es = 120 * (1140/380)

Es = 360 V

B)

using Es Is = Ep IP

(360) (16.5) = 120* Ip

Ip = 49.5 A

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
An ideal transformer has 100 turns on its primary coil and 200 turns on its secondary...
An ideal transformer has 100 turns on its primary coil and 200 turns on its secondary coil. If 120 V at 2.0 A is applied to the primary, (a) What voltage is present in the secondary? (b) What current is present in the secondary? (c) What is the output power? (d) Is this a step-up or step-down transformer? (e) Is the input power the same, larger or smaller than the output power?
6. A transformer has an input voltage of 120 V(rms) AC with an output of 12,000...
6. A transformer has an input voltage of 120 V(rms) AC with an output of 12,000 V(rms) AC . The number of wire turns in the primary is 75. An output power of 245 W is required. Assume the transformer is approximately 100% efficient. Find the a. Number of wire turns needed on the output side. b. input current c. Output current
1. The transformer below has a 120 V primary and a 15 V secondary and is...
1. The transformer below has a 120 V primary and a 15 V secondary and is rated for (S=50 VA). Z2 is 8 Ω. A) If the primary has 2000 turns, how many turns are in the secondary? B) What is the current in the secondary? C) What is the current in the secondary? D) What is the input impedance of the primary? E) What is the minimum value of Z2 for safe operation of the transformation? (Calculate Imax from...
Question 27 A. A transformer has an input voltage of 100 V and an output voltage...
Question 27 A. A transformer has an input voltage of 100 V and an output voltage of 10,000 volts. If the primary coil has 100 turns and the input current is 2 A, what is the output current, and how many turns does the secondary coil have? B. What is the flux through a loop of wire with 20 turns having a circular shape with a radius of 5.0 cm when it is placed with its face perpendicular to a...
What is the voltage output of a transformer used for rechargeable flashlight batteries if its primary...
What is the voltage output of a transformer used for rechargeable flashlight batteries if its primary has 525 turns, its secondary has8 turns, and the input voltage is 112 V? V (b) What input current is required to produce a 4.00 A output? mA (c) What is the power input? W
A transformer has 1600 turns on its secondary and 200 turns on its primary. The primary...
A transformer has 1600 turns on its secondary and 200 turns on its primary. The primary is connected to a 20V ac source. What is the output voltage of the secondary in volts?
A transformer has 310 turns in the primary coil and 180 in the secondary coil. a.By...
A transformer has 310 turns in the primary coil and 180 in the secondary coil. a.By what factor does it change the voltage? Assume 100% efficiency. b.By what factor does it change the current? Express your answer using three significant figures.
a) An ideal step-down transformer has a primary coil of 400 turns and a secondary coil...
a) An ideal step-down transformer has a primary coil of 400 turns and a secondary coil of 14 turns. Its primary coil is plugged into an outlet with 240 V(AC), from which it draws an rms current of 0.35 A. What is the voltage in the secondary coil? b) Calculate the rms current in the secondary coil. c) Assuming that the transformer secondary is driving a resistive load, calculate the average power dissipated in the resistor.
An ideal step-down transformer has a primary coil of 370 turns and a secondary coil of...
An ideal step-down transformer has a primary coil of 370 turns and a secondary coil of 25 turns. Its primary coil is plugged into an outlet with 115 V(AC), from which it draws an rms current of 0.69 A. What is the voltage in the secondary coil? Calculate the rms current in the secondary coil. Assuming that the transformer secondary is driving a resistive load, calculate the average power dissipated in the resistor.
A transformer has a primary-to-secondary turns ratio of 100:1. The voltage on the primary side is...
A transformer has a primary-to-secondary turns ratio of 100:1. The voltage on the primary side is 27.7 kv.a.c. at 60.0 Hz ( assume 60.0 Hz when treating electric power topics). A load is connected across the secondary winding. Assume that the transformer is ideal. (a) Suppose that the electric utility supplied 27.7 kv.d.c. rather than 27.7 kv.a.c. How much power would the transformer’s secondary winding deliver to the load in this case? (b). The transformer’s primary winding is supplied by...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT