From Paper 3, Higher
A 12 V battery is connected to a 6 Ω resistor in parallel with a 12 Ω resistor. Calculate the total current from the battery.
From Paper 3, Higher
Calculate the energy transferred when 20 C of charge passes through a potential difference of 12 V.
From Paper 3, Higher
Calculate the energy transferred when 3000 C of charge passes through a potential difference of 230 V.
From Paper 3, Higher
Explain why a light-dependent resistor is used in automatic street lights.
From Paper 3, Higher
Explain why touching the live wire is dangerous even if the switch is off.
From Paper 3, Higher
Describe the electric field around a negatively charged sphere.
From Paper 3, Higher
Explain why a fuse is used in a plug.
From Paper 3, Higher
Explain why the resistance of a filament lamp increases as the current increases.
From Paper 3, Higher
Calculate the current in a 4 Ω resistor connected to a 12 V supply.
From Paper 3, Higher
Calculate the current in a 46 Ω resistor connected to a 230 V supply.
From Paper 3, Higher
Calculate the current in a 1.5 Ω resistor connected to a 6 V supply.
From Paper 3, Higher
What is the unit of potential difference?
Score 0 / 30 · 0 of 12 marked
This paper is written by Plasmo in the style of the OCR GCSE Physics exam. It is not a past paper and is not produced or endorsed by the exam board.