Question

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 1.5 T magnetic field?

c. When a magnetic field is changed from 0 T to 1.5 T, an emf of 2.5 V is created in a loop of wire with a radius of 5.0 cm. How much time did it take for the magnetic field to change ?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

A)

From Transformer turns ration

b)

Area of circular loop is

The Magnetic flux through the loop is

c)

Area of circular loop is

Induced emf is given by

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
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
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?
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?
A transformer has 500. primary turns and 10.0 secondary turns. (a) If Vp is 120.V(rms), what...
A transformer has 500. primary turns and 10.0 secondary turns. (a) If Vp is 120.V(rms), what is Vs? If the secondary now has a resistive load of 10.0Ω, what is the current in the (b) secondary and (c) primary? (Hints: Input power equals the output power. Express power in terms of voltage and current, then use Faraday’s Law to relate voltage to number of turns and change of flux. If the primary and the secondary are connected via a closed...
A. A solenoid is 6 cm long and has 500 turns of wire. Determine the magnetic...
A. A solenoid is 6 cm long and has 500 turns of wire. Determine the magnetic field in the solenoid when it carries a current of 700 mA. B. A step-down transformer has 400 turns on the primary and 100 turns on the secondary. If an alternating voltage of 100 Volts is applied to the primary, what is the voltage across the secondary?
The “power cube” transformer for a portable CD player has an output of 4.5 V and...
The “power cube” transformer for a portable CD player has an output of 4.5 V and 500 mA (both rms) when plugged into a 120V/60Hz outlet. Part A If the primary coil has 1220 turns of wire, how many turns are on the secondary coil? I found the answer to part A: N=46 turns. Part B What is the peak current in the primary coil?
An AC adapter for a telephone answering machine uses a transformer to reduce the line voltage...
An AC adapter for a telephone answering machine uses a transformer to reduce the line voltage of 120 V to a voltage of 4.00 V. The RMS current delivered to the answering machine is 350 mA. If the primary (input) coil of the transformer has 720 turns, then how many turns are there on the secondary (output) coil? What is the power drawn from the electric outlet, if the transformer is assumed to be ideal? What is the power drawn...
An AC adapter for a telephone answering machine uses a transformer to reduce the line voltage...
An AC adapter for a telephone answering machine uses a transformer to reduce the line voltage of 120 V to a voltage of 4.00 V. The RMS current delivered to the answering machine is 660 mA. If the primary (input) coil of the transformer has 600 turns, then how many turns are there on the secondary (output) coil? What is the power drawn from the electric outlet, if the transformer is assumed to be ideal? What is the power drawn...
The primary coil of a transformer has N1 = 340 turns, and the secondary coil has...
The primary coil of a transformer has N1 = 340 turns, and the secondary coil has N2 = 2 190 turns. If the input voltage across the primary coil is Δv(t) = 170 cos ωt, where Δv is in volts and t is in seconds, what rms voltage is developed across the secondary coil?
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
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT