Curriculum
Course: IB Physics SL
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Curriculum

IB Physics SL

Theme A — Space, Time and Motion

0/80 Dr Dabour Hub Science Diagram and Course Material

Theme B — The Particulate Nature of Matter

0/87 Dr Dabour Hub Science Diagram and Course Material

Theme C — Wave Behaviour

0/60 Dr Dabour Hub Science Diagram and Course Material

Theme D — Fields

0/41 Dr Dabour Hub Science Diagram and Course Material

Theme E — Nuclear and Quantum Physics

0/59 Dr Dabour Hub Science Diagram and Course Material

Tools and Inquiry — IB Physics skills

0/54 Dr Dabour Hub Science Diagram and Course Material
Quiz

B.5.2 Electric Current – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
A current of 2.5 A flows for 40 s. The charge passed is
100 C
16 C
62.5 C
42.5 C
2.
The SI unit of electric charge in base units is
A s−1
A m
A2 s
A s
3.
The same current flows through a wire of uniform material. At a section where the area is halved, the drift speed
halves
stays the same
doubles
quadruples
4.
Which statement about electrons in a metal carrying current is correct?
They move at about the speed of light
They drift in the direction of conventional current
They are used up in the lamp
They drift opposite to conventional current
5.
How many electrons pass a point in 1.0 s when the current is 3.2 µA? (e = 1.6 × 10−19 C)
2.0 × 1013
5.1 × 10−25
2.0 × 1025
3.2 × 106
6.
A semiconductor and a metal wire of equal area carry the same current. The semiconductor has fewer carriers per unit volume. Its drift speed is
smaller
the same
larger
zero
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Part of Theme B — The Particulate Nature of Matter — see every lesson and quiz in this unit.
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