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← Topic 9 overviewTOPIC 9 ASSESSMENT

Electricity

CIE-style questions assess charge, drift velocity, potential difference, resistance, resistivity and electrical power.

Objective question 1

Electric current is:

Objective question 2

In I = nAqv, v is:

Objective question 3

Potential difference is energy transferred per:

Objective question 4

For a uniform wire, resistance is:

Objective question 5

A metallic filament's resistance increases when hot because:

Structured question 1

A current of 0.80 A flows for 45 s. Calculate the charge transferred.

Structured question 2

A wire has resistivity 1.7 × 10⁻⁸ Ω m, length 2.0 m and area 1.0 × 10⁻⁶ m². Calculate resistance.

Structured question 3

A 24 V heater draws 3.0 A for 120 s. Calculate the electrical energy transferred.