Flashcards
Current Electricity
Cards in this deck (7)
- 1What is an electric current?A flow of electric charge
- 2What are conductors?Conductors are substances which allow electric current to flow through them freely
- 3What are insulators?Insulators are substances which do not allow current to pass through them freely eg. wood
- 4What is a battery/ power pack?An electrical pump that pumps electrons around a circuit
- 5which regions are electrons pumped from and to?from a region of high electrical pressure(negative terminal) to a region of low electrical pressure (positive terminal)
- 6What is the electrical pressure difference between the negative and positive terminals called?The potential difference/ voltage.
(measured in volts (V) using voltmeter ) - 7What is used to measure an electric flow/ current and its unit.A current (I) is measured in amps (A) using an ammeter.