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Cambridge IGCSE Physics practice

Paper 3 structured question: Electric current

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Attempt questionElectric current revisionRevise the key idea

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Electric current

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Paper 3Theory (Core)2 marks

Electricity is vital for modern technology.

Description

Electric Current Types

Direct current (D.C.) is used in batteries, while alternating current (A.C.) is used in power supplies.

  1. a

    State one application of D.C. and one application of A.C.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 3 structured question: Electric current

Paper 3Theory (Core)1 marks

Description

Types of Electric Current

There are two main types of electric current: direct current (D.C.) and alternating current (A.C.). D.C. flows in one direction, while A.C. changes direction periodically.

  1. a

    State the main difference between D.C. and A.C.

    Aim for approximately 1 distinct marking point.

    [1]