Skip to main content

What is a Volt?

Answer – Volt is the SI unit for electric potential.

Explanation:

Volt is the SI unit for electric potential (or electromotive force). The symbol for volt is V.

Electric potential is the amount of work required to move an electric charge from one point to another against an electric field. One volt is equal to the electric potential needed to carry a current of one ampere across an electric field that has a resistance of one ohm.

While an SI unit, volt is not an SI base unit. In base units,

1 V = 1 kg m²/s³ A

This unit is named after Alessandro Volt, an Italian physicist.

Popular Questions

The position as a function of time graph for an Olympic class sprinter during a race is shown in the figure. The data are fit to the function shown on the figure. Determine the velocity in meters per second of the sprinter at time t=2.75seconds, and determine the acceleration in meters per second squared of the sprinter at time t=2.74 seconds.

The Van de Graaf generator includes a metal sphere of radius R electrically isolated from its surround- ings except for a wire which can carry a current. When the current is a steady 5.0 μA, it takes 1.3 s for the sphere to reach its operating potential of 4.0×102 kV if it’s initially uncharged. What is R?

The thin plate shown in the figure below has density p and thickness t. Calculate the smallest principal moments of inertia (in slug.in²) about O assuming pt = 1 slug/in².

The velocity v→ of a particle moving in the xy plane is given by v→=(5.50t-5.00t2)î+9.00ĵ, with v→ in meters per second and t (> 0) in seconds. At t = 1.40 s and in unit-vector notation, what are (a) the x component and (b) the y component of the acceleration? (c) When (if ever) is the acceleration zero? (d) At what positive time does the speed equal 10.0 m/s?

Textbook Solutions

SHOW MORE TEXTBOOK SOLUTIONS+

Tagged In

Electric Potential Physics Volt

Related Expert Answers

Q & A

Have homework questions? Get answers!*

Our experts are available 24/7 to help answer your homework questions in 30 subjects... and growing!