Resistance
Cards (24)
- What should you be able to describe by the end of the video?
- What does electricity involve in an electric circuit?
- What type of energy does a cell contain?
- What is carried by the current in a circuit?
- What is the flow of electrons around the circuit called?
- What happens to electrical energy when electrons pass through a component like a lamp?
- What do we use to work out the energy transfers involved in a circuit?
- What is the potential difference of the cell mentioned?
- How much electrical energy does the current carry per coulomb of charge?
- What does a potential difference of 9 volts across the lamp indicate?
- What causes energy transfer in components?
- What does resistance tell us?
- What happens to electrons as they move through a conductor?
- What is the result of electrons colliding with atoms in a metal?
- What is the unit for resistance?
- What is the equation for calculating resistance?
- What is the symbol for ohm?
- How do you calculate the resistance of lamp A with a current of 1 ampere and a potential difference of 1 volt?
- What is the resistance of lamp B with a current of 1 ampere and a potential difference of 10 volts?
- How do you rearrange the resistance equation to find potential difference?
- If the current is 0.5 amp and the resistance is 50 ohms, what is the potential difference across the lamp?
- What is the process to calculate resistance in a circuit?
- What are the steps to calculate potential difference in a circuit?
- What are the key concepts related to resistance in circuits?