define 1 volt

A volt is a joule per coulomb.If you're struggling to remember try and picture the situation. Imagine current as individual units of charge passing through a battery. The charge has passed round the whole circuit and 'given' its energy to the components in the circuit by the time it reaches the battery so it needs to get some more. One volt from the battery gives this individual charge unit some energy. The unit of energy is joules and unit of charge is coulomb hence 1 volt is one joule (energy) per charge (coulomb).

Answered by Alice D. Physics tutor

2150 Views

See similar Physics GCSE tutors

Related Physics GCSE answers

All answers ▸

An electric heater has a power of 1000W. It is connected to mains electricity (230V). The heater is equipped with an Earth wire. a) Calculate the current in the heater. b) Explain the role of the earth wire as a safety feature.


What is an (electrostatically) induced charge?


If Newton's 3rd law is true (all actions have an equal and opposite reaction), then how can any object move?


A 10kg cube of iron with length 5cm is resting on a table surface. Assuming the acceleration under gravity of the block is 9.81ms^(-2), what is the pressure on the table?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2024

Terms & Conditions|Privacy Policy
Cookie Preferences