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2.1 Current, potential difference and resistance

2.1 Current, potential difference and resistance

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Question 7

An industrial power backup system uses a high-capacity battery storage facility to supply electricity to a local factory during a grid outage.

a.

Write down the equation which links charge flow (QQQ), current (III), and time (ttt).

[1]
b.

The battery storage facility supplies a current of 16,000 A16,000\text{ A}16,000 A during a short-term outage. Calculate the charge flow from this system in 8 minutes8\text{ minutes}8 minutes.

[3]
c.

State the correct SI unit for charge flow from the following choices:

  • amperes
  • coulombs
  • joules
[1]
Markscheme

2.1 Current, potential difference and resistance Questions

  1. GCSE
  2. /Physics
  3. /2.1 Current, potential difference and resistance

39 exam-style questions on AQA GCSE Physics 2.1 Current, potential difference and resistance, covering 2.1.1 Standard circuit diagram symbols, 2.1.2 Electrical charge and current, 2.1.3 Current, resistance and potential difference, and 2.1.4 Resistors. Each one has a worked solution and a mark scheme showing where the marks go.

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