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Electricity and Magnetism
Quick questions on Current, voltage and resistance: N(T) Science Electricity and Magnetism
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is current?Show answer
Current is the flow of electricity around a circuit. The bigger the current, the more electricity is flowing each second.
What is voltage?Show answer
Voltage is the push that drives the current around the circuit. It is supplied by the cell or battery (or the mains). A bigger voltage gives a bigger push, which drives a bigger current.
What is resistance?Show answer
Resistance is anything that slows down or opposes the current. Every component has some resistance. A component with a high resistance is hard for the current to flow through, so it lets less current through.
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