Flashcards
Electronics test
Cards in this deck (14)
- 1What is the symbol and unit for voltage?V, Joule per second
- 2What is the symbol and unit for Energy?E, Joule
- 3What is the symbol and unit for Current?I, Coloumb per second or Amp
- 4What is the symbol and unit for Time interval?T, per second
- 5What is the symbol and unit for Resistance?Ohm, volt per amp or ohm
- 6What is the symbol and unit for Power?Joule per second or watt
- 7V=E/Q?Voltage(volts) equals Energy (joules)divided by amount of charge.
- 8Q=IT?Charge equals current(amps) times time (second)
- 9V=IRVoltage (volts) equals current times resistance (ohms)
- 10P=VIPower equals voltage (volts) times Current (amp)
- 11What is a valence shell?The valence shell is the outer shell of an atom, some elements have incomplete valence shells, therefore there may be electrons that can escape is applied to the wire that is conducting the eletrons. These electrons can move and conduct electricity.
- 12What are insulators?No free electrons as the outer layer of the valence shell layer is full. So this means that there are no free electrons floating around.
- 13What is resistance?Resistance is a pushback against a flow of electrons, due to collisions with protons, and neutrons of other atoms and some electrons are defected by the contact of a nucleus.
- 14What are the 4 factors that have an impact on the level of resistance towards the electric current that would be flowing?Diameter of wire, length of the wire,
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- Electronics Flashcards on Electronics test, created by Grace Gardiner on 07/03/2017.
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- Grace Gardiner
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