1. A soldering iron is rated at 350 W. If the current in the iron is 4.00...

Question:

1. A soldering iron is rated at 350 W. If the current in the iron is 4.00 A, what is the resistance of the iron?

2. What power is developed by a device that draws 6.00 A with resistance 12.0 Ω?

3. Find the output power of a transformer with output voltage 500 V and current 7.00 A.

4. A heater operates on a 110-V line and is rated at 450 W. What is the resistance of the element?

5. A heating element draws 6.00 A on a 220-V line. What power is used in the element?

6. A 32.0-Ω resistance coil uses 375 W of power. What is the current in the coil?

7. What power is used by a heater that has a resistance of 12.0 Ω and draws a current of 7.00 A?

8. A heater operates on a 110-V line and is rated at 750W. What is the resistance of the heater element?

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Applied Physics

ISBN: 978-0132109277

10th Edition

Authors: Dale ewen, Neill schurter, P. erik gundersen

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Question Posted: May 17, 2013 09:46 AM

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1. A soldering iron is rated at 350 W. If the current in the iron is 4.00...

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1 R P I 2 350 W 400 A 2 219 2 P I 2 R 600 A 2 120 432 W 3 P ...View the full answer

Applied Physics

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