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Exam-style practice

The d.c. motor answer explanations

Review worked answers and explanations for The d.c. motor. Aligned to Cambridge IGCSE Physics.

Answer explanations

Question 1 of 4

Review the answer support, then move sideways through the set.

Paper 3 structured question: The d.c. motor

Paper 3Theory (Core)1 marks

Description

Coil in a Magnetic Field

The coil has 100 turns and carries a current of 2 A in a magnetic field of strength 0.5 T.

  1. a

    State the factors that can increase the rotational force on the coil.

    [1]