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Transcript
Basic Definitions: Voltage
• An electric charge has the ability to do the work of moving
another charge by attraction or repulsion. The ability of a
charge to do work is called its potential.
• Voltage is a measure of potential energy , always relative
between two points (potential difference).
– The symbol for voltage is V, (emf can be e or E).
– The basic unit for voltage or emf is the volt ( V ).
• Remember: Voltage is always relative between two points:
– What is the meaning of a battery voltage output of 6 V?
– A voltage output of 6V means that the potential difference between the two terminals
of the battery is 6V.
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