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Simple circuits

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Question 22

Electric current can be measured in amperes (A\text{A}A) or microamperes (μA\mu\text{A}μA).

What is 4.2 μA4.2\ \mu\text{A}4.2 μA converted into A\text{A}A?

A

4.2×10−9 A4.2 \times 10^{-9}\text{ A}4.2×10−9 A

B

4.2×10−6 A4.2 \times 10^{-6}\text{ A}4.2×10−6 A

C

4.2×10−3 A4.2 \times 10^{-3}\text{ A}4.2×10−3 A

D

4.2×106 A4.2 \times 10^{6}\text{ A}4.2×106 A

Markscheme

Simple circuits Questions

  1. GCSE
  2. /Physics
  3. /Simple circuits

42 exam-style questions on OCR GCSE Physics Simple circuits. Each one has a worked solution and a mark scheme showing where the marks go.

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