Physics

Current, Potential Difference, Resistance & Power — Multiple-Choice Questions (Edexcel IAL Physics): Exam Questions

Exam code:YPH11

9 questions · 9 marks · ≈ 9 min

Guided practice

11 markeasy

A graph of current against potential difference for an electrical component is shown.

q6-wph12-02-june-2021-edexcel-int-as-a-level-phy

Which component would give this graph?

Choose your answer

diode

filament bulb

ohmic conductor

thermistor

21 markeasy

Which of the following units is equivalent to the volt?

Choose your answer

J s^–1

W s^–1

J C^–1

W C^–1

31 markeasy

The graph shows how potential difference $V$ varies with current $I$ for an electrical component.

q1-wph12-02-oct-2021-edexcel-int-as-and-a-level-phy

Which electrical component is represented by this graph?

Choose your answer

diode

filament lamp

ohmic conductor

thermistor

41 markeasy

The unit of electric potential can be written as $\text{J C}^{-1}$ .

Which of the following is the equivalent expression in SI base units?

Choose your answer

$\text{kg m}^{2} \text{s}^{-2}$

$\text{kg m}^{2} \text{s}^{-2} \text{A}^{-1}$

$\text{kg m}^{2} \text{s}^{-3} \text{A}^{-1}$

$\text{kg m s}^{-3} \text{A}^{-1}$

51 markeasy

The graph shows how the potential difference $V$ varies with the current $I$ for a circuit component.

Graph of potential difference V against current I showing a curve passing through the origin, very flat at low I, then curving steeply upwards as I increases.

Which of the following could be the circuit component?

Choose your answer

ohmic resistor

filament lamp

thermistor

diode

61 markmedium

The unit of resistance is the ohm.

Which of the following is equivalent to the ohm?

Choose your answer

$JC^{-2}s$

$JC^{2}s^{-1}$

$JC^{-1}s^{-1}$

$JCs$

71 markmedium

Which of the following derived units can be expressed in SI base units as kg m² s^–3 ?

Choose your answer

coulomb

joule

volt

watt

81 markmedium

The graph shows how current I varies with potential difference V for an electrical component.

q8-wph12-02-jan-2022-edexcel-int-as-a-level-phy

Which component is represented by this graph?

Choose your answer

Diode

Filament lamp

Ohmic conductor

Thermistor

91 markmedium

A light dependent resistor (LDR) and a fixed resistor are connected in a circuit, as shown.

q10-wph12-02-jan-2022-edexcel-int-as-a-level-phy

The intensity of the light incident on the LDR is increased.

Which of the following does not take place as the light intensity is increased?

Choose your answer

The current in the circuit increases.

The potential difference across the fixed resistor increases.

The total power dissipated in the circuit decreases.

The resistance of the LDR decreases.