Do batteries contain current, which comes out when they are in a circuit?
No; this is a common misconception! Batteries store energy, which is used to push electrons (charges) around a circuit. The flow of electrons is called current. As the electrons flow through the circuit they lose energy, usually because they're doing some electrical work like driving a motor or making a lightbulb light up!
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Related Physics GCSE answers
All answers ▸Photons with 605 THz frequency strike metal of 1.2eV work function. Calculate the maximum energy of photoelectrons and their velocity. What amount of energy is necessary to stop all photoelectrons? (Planck's constant. electron mass and charge are given)
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a) Give an example of an alpha radiation source used in homes b) Why is it safe to use a source of alpha radiation in the house