physics electricity
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physics electricity - Marcador
physics electricity - Detalles
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Preguntas:
23 preguntas
| 🇬🇧 | 🇬🇧 |
| An electrical current heats the filament in a bulb so that it gives out light | What happens in a lamp? |
| A fixed resistor has a resistance that does not change and a variable resistor can change resistance | What is a fixed and variable resistor? |
| It allows current to flow through only one direction | What is a diode? |
| The flow of electrons is consistently in one direction around the circuit | What is direct current? |
| The direction of electron flow continually reverses | What is an alternating current? |
| Electrons are negatively charged particles and they transfer energy through wires as electricity | What are electrons? |
| Current is the flow of electrical charge | What is current? |
| Q=It | What links current time and charge? |
| In series | Where must the ammeter always be placed? |
| Both the resistance of the component and the potential difference across the component | What does the current through a component depend on? |
| In parallel with the component | Where must the voltmeter be placed? |
| E=QV | What links potential difference energy and charge? |
| V=IR | What links potential difference current and resistance? |
| --- | Length of wire practical |
| ---- | Investigating current practical |
| .. | Draw results for an ohmic |
| Same current v1=v2=v3 | Current in a series |
| V2=v1+v1 | Potential difference in series |
| Rtotal= r1+r2 | Resistance in series |
| The same | Potential difference in parallel circuits |
| Split between the loops | Current in parallel circuits |
| Jj | Investigate resistor networks |