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Online Physics Glossary
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Word Meaning Remarks
Effective voltage DC potential difference that would produce the same heating effects.
Efficiency Ratio of output work to input work.
Effort force Force extended on a machine.
Elastic collision Interaction between two objects in which the total energy is the same before and after the interaction.
Elasticity Ability of object to original shape after deforming forces are removed.
Electrical charge pump Device, often a battery or generator, that increase potential of electrical charge.
Electrical circuit Continuous path through which electrical charges can flow.
Electrical current Flow of charged particles.
Electrical field Property of space around a charged object that causes forces on other charged objects.
Electric field lines Lines representing the direction of electric field.
Electric field strength Ratio of force exerted by field on a tiny test charge to that change.
Electric generator Device converting mechanical energy into electrical energy.
Electric potential Ratio of electric potential energy to charge.
Electric potential difference Difference in electric potential between two points.
Electric potential energy Energy of a charged body in an electrical field.
 
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