Answer to Question #14784 in Electricity and Magnetism for Gio

Electricity and Magnetism

Question #14784

A potential difference of 12 V produces a current of 0.40 A in a piece of copper wire. What is the resistance of the wire ?

Expert's answer

Let's use the Ohm's law:

I = U/R ==> R = U/I = 12V/0.4A = 30 Ω.

Learn more about our help with Assignments: Electromagnetism

Comments

No comments. Be the first!

Leave a comment

Related Questions

1. A proton deutrons and alpha particle enter a uniform magnetic field perpendicular to the field with
2. 1. Two horizontal plates are separated by 10mm and have a surface area of 100 cm^2. If a charged bal
3. What is the energy generated (or stored) per second? (E = PT)? for the water to run through each of
4. For the largest battery projecxt in US, $25 million is spent on a sodium-sulfur battery storage syst
5. what is the final delivered electricity in kWh by burning one pound of coal (13,100 BTU) with a boil
6. If the frequency of an electromagnetic wave is 1 × 10^6 Hz what is the wavelength? Answer in units
7. Einstein showed that the shorter the wavelength of a wave, the more energy its associated photon car