Question

0 0
Add a comment Improve this question Transcribed image text
Answer #1

apply in atransformer N1/N2 = V1/V2 = i2/i1


so N1/N2 = 231/121 = 1.909

---------------------------------

i2 = 14* 121/231

i2 = 7.33 Amps

Add a comment
Know the answer?
Add Answer to:
A hair drier uses 14 A at 121 V. It is used with a transformer in...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • A cassette recorder uses a plug-in transformer to convert 120 V to 18.0 V, with a...

    A cassette recorder uses a plug-in transformer to convert 120 V to 18.0 V, with a maximum current output if 475 mA. A) What is the ratio number of primary turns to the secondary turns?

  • A transformer connected to a 120 V (rms) a line is to supply 12.0 V (rms)...

    A transformer connected to a 120 V (rms) a line is to supply 12.0 V (rms) to a 5.00 Ohm resistor in the secondary circuit. (a) What should the ratio of turns of the primary to secondary circuit of the transformer be? (b) What is the average power delivered to the secondary? (c) Assuming the transformer to be ideal (i.e., 100% of the power in the primary is transferred to the second), what is the rms current in the primary?

  • If 110 V rms is applied to the primary of an ideal transformer with a turns...

    If 110 V rms is applied to the primary of an ideal transformer with a turns ratio of 500:1, what is the RMS voltage output from the secondary? What is the peak voltage outpyt from the secondary? a. If 110 VAMS is applied to the primary of an ideal at is transformer with a turns ratio of 500:1, wh the RMS voltage output from the secondary? What is the peak voltage output from the secondary?

  • A doorbell uses a transformer to deliver an amplitude of 8.5 V when it is connected...

    A doorbell uses a transformer to deliver an amplitude of 8.5 V when it is connected to a 260 V-amplitude line. There are 70 turns on the secondary. (a) What is the turns ratio? 1/   (b) How many turns does the primary have?

  • A transformer with 1200 turns on the primary is used to increase the voltage amplitude of...

    A transformer with 1200 turns on the primary is used to increase the voltage amplitude of 120 V to 600 V 6. a) What is the number of turns on the secondary coil? Answer: b) If the current in the primary coil is 5.6 A, what is the current amplitude in the secondary coil? Answer:

  • Part A: A transformer with turns ratio (primary/secondary) of 18:1 is used to step down the...

    Part A: A transformer with turns ratio (primary/secondary) of 18:1 is used to step down the voltage from a 120 V wall socket to be used in a battery charger. What is the voltage supplied to the recharger? Part B: The electric motor in a toy train requires a voltage of 9.0 V. Find the ratio of turns on the primary coil to the turns on the secondary coil in a transformer that will step the 120-V household voltage down...

  • A transformer connected to a 125 V (rms) ac line is to supply 12000 V (rms)...

    A transformer connected to a 125 V (rms) ac line is to supply 12000 V (rms) for a neon sign. To reduce shock hazard, a fuse is to be inserted in the primary circuit; the fuse is to blow when the rms current in the secondary circuit exceeds 5.00 mA. (a) What is the ratio of secondary to primary turns of the transformer? (secondary/primary) (b) What power must be supplied to the transformer when the rms secondary current is 5.00...

  • 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 5.00 V. The RMS current delivered to the answering machine is 380 mA. If the primary (input) coil of the transformer has 960 turns, then how many turns are there on the secondary (output) coil? Submit Answer Tries 0/20 What is the power drawn from the electric outlet, if the transformer is assumed to be ideal? Submit...

  • show all work 1. a transformer is connected to a 460 VAC line. The secondary voltage...

    show all work 1. a transformer is connected to a 460 VAC line. The secondary voltage is 230VAC. The load connected to the secondary voltage draws 30A. a. what is the turns ratio of the transformer? b. How much current flows in the primary circuit? 2. You find that under unusually heavy loads, the voltage in your plant drops to 456 V. What will be the resulting secondary voltage if you use a transformer with a 4:1 primary to secondary...

  • 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 6.00 V. The RMS current delivered to the answering machine is 600 mA. If the primary (input) coil of the transformer has 360 turns, then how many turns are there on the secondary (output) coil? Tries 0/20 What is the power drawn from the electric outlet, if the transformer is assumed to be ideal? Tries 0/20 What...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT