# application of Ohm’s law

1. What is the wavelength in meters of radio waves produced by a radio station with a frequency of 1400 kHz?

2. A series of ocean waves, each 6.0 m from crest to crest, moving past an observer at a rate of 2.0 waves per second, has what speed?

3. What are the wavelength limits in meters of the audible region of the sound spectrum ( v = 344 m/s)?

4. How many times greater is the speed of red light ( λ = 700 nm) than the speed of violet light ( λ = 400 nm) in a vacuum?

5. The intensity of a 70-dB whistle is doubled. What is the new dB level?

6. A particular sound with large intensity is reduced 1000-fold. What is the dB reduction?

7. The speed of light in diamond is 1.24 × 10 8 m/s. What is the index of refraction of diamond?

8. A particular material has an index of refraction of 1.25. What percent of the speed of light in vacuum is the speed of light in the material?

9. An object is placed 20 cm in front of a concave spherical mirror. Give the general characteristics of the image for a mirror with a radius of curvature of R = 30 cm.

10. A plane mirror stands vertically on a table. A ruler lies on the table in such a position as to make an angle of 30 ° with the mirror. Determine the angle between the ruler and its image.

11. An object is placed 20 cm from a converging spherical lens. Give the general characteristics of the image for a lens with a focal length of f = 25 cm.

12. An insulator has a positive electric charge of 2.4 × 10 <sub>-17</sub> C. How many electrons were added or removed?

13. If two protons are moved 3 times farther apart, the electrical force between them is what factor of the original force?

14. A steady current of 0.15 A exists in a wire for 20 s. How much net charge passes by a point in the wire?

15. How many electrons does the charge from Question 14 represent?

16. A current of 6.0 A flows through a resistance of 50 ohm. How much power is dissipated?

17. A 20 ohm resistor and a 30 ohm resistor are wired in parallel and connected to a 9.0-V battery. How much current is drawn from the battery?

18. Three resistors, 10, 20, and 30 ohms, are wired in series and connected to a 120-V battery. How much current flows in the circuit?

19. A doorbell has an input voltage of 120 V. A transformer that steps the voltage down to 12 V has 500 turns on its primary. What is the number of turns on the secondary?

20. The voltage in a house is measured to be 122.5 V. What is the current drawn by a 75.0-W light bulb?

Calculate the price
Pages (550 words)
\$0.00
*Price with a welcome 15% discount applied.
Pro tip: If you want to save more money and pay the lowest price, you need to set a more extended deadline.
We know how difficult it is to be a student these days. That's why our prices are one of the most affordable on the market, and there are no hidden fees.

Instead, we offer bonuses, discounts, and free services to make your experience outstanding.
How it works
Receive a 100% original paper that will pass Turnitin from a top essay writing service
step 1
Fill out the order form and provide paper details. You can even attach screenshots or add additional instructions later. If something is not clear or missing, the writer will contact you for clarification.
Pro service tips
How to get the most out of your experience with TheBestPaperWriters
One writer throughout the entire course
If you like the writer, you can hire them again. Just copy & paste their ID on the order form ("Preferred Writer's ID" field). This way, your vocabulary will be uniform, and the writer will be aware of your needs.
The same paper from different writers
You can order essay or any other work from two different writers to choose the best one or give another version to a friend. This can be done through the add-on "Same paper from another writer."
Copy of sources used by the writer
Our college essay writers work with ScienceDirect and other databases. They can send you articles or materials used in PDF or through screenshots. Just tick the "Copy of sources" field on the order form.
Testimonials
See why 20k+ students have chosen us as their sole writing assistance provider
Check out the latest reviews and opinions submitted by real customers worldwide and make an informed decision.
Anthropology
Excellent services will definitely come back
Customer 452441, September 23rd, 2022
English 101
Very good job. I actually got an A
Customer 452443, September 25th, 2022
Psychology
Thanks a lot the paper was excellent
Customer 452453, October 26th, 2022
Architecture, Building and Planning
The assignment was well written and the paper was delivered on time. I really enjoyed your services.
Customer 452441, September 23rd, 2022
Anthropology
excellent loved the services
Customer 452443, September 23rd, 2022
Nursing
The paper was EXCELLENT. Thank you
Customer 452449, September 23rd, 2022
Job well done. Finish paper faster than expected. Thank you!
Customer 452451, October 3rd, 2022
Thank you!
Customer 452451, November 27th, 2022
Theology
Job well done and completed in a timely fashioned!
Customer 452451, November 18th, 2022
11,595
Customer reviews in total
96%
Current satisfaction rate
3 pages
Average paper length
37%
Customers referred by a friend