E.M.F & Modelling Resistance (Edexcel A Level Physics)

Exam Questions

9 mins4 questions
1
Sme Calculator
1 mark

A cell of e.m.f. 1.5 V is connected to a 5.0 Ω resistor. The terminal potential difference across the cell is 1.0 V.  

q5-june-2019-9ph0-01-edexcel-as-a-level-phy

Which of the following is the current in the circuit? 

  • 0.1 A 

  • 0.2 A

  • 0.3 A

  • 0.5 A

Did this page help you?

1
Sme Calculator
1 mark

A cell is connected across a resistor. After a while the internal resistance of the cell increases.

Which row of the table correctly shows the change in the current in the circuit and the change in the terminal potential difference across the cell?

  Current Terminal potential difference
A decreases decreases
B decreases increases
C increases decreases
D increases increases

 

    Did this page help you?

    2
    Sme Calculator
    1 mark

    The diagram shows a graph of current I against potential difference V for an electrical component. 

    q6-june-2019-9ph0-01-edexcel-as-a-level-phy

    Which of the following components would produce a graph of this shape? 

    • filament bulb 

    • metallic conductor 

    • negative temperature coefficient thermistor 

    • ohmic conductor 

    Did this page help you?