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

D.3.2 Magnetic Force between Two Parallel Conductors – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
Two parallel wires carry currents in the same direction. The wires
repel each other
exert no force
turn about a common axis
attract each other
2.
The separation of two long parallel wires is doubled, the currents unchanged. The force per unit length
quarters
halves
doubles
is unchanged
3.
Each of two parallel wires 0.10 m apart carries 5.0 A. The force per metre is
1.0 × 10−6 N m−1
2.5 × 10−4 N m−1
5.0 × 10−7 N m−1
5.0 × 10−5 N m−1
4.
The magnetic flux density near a long straight wire varies with distance r as
1/r
1/r2
r
r2
5.
Wire P carries 2I and wire Q carries I. Compared with the force on Q, the force on P is
twice as large
equal in size and opposite in direction
half as large
zero
6.
The unit of μ0 is
T A m−1
N A2
T m A−1
T m2
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Part of Theme D — Fields — see every lesson and quiz in this unit.
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