Curriculum
Course: OCR A Level Physics A H556
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Curriculum

OCR A Level Physics A H556

1. Development of Practical Skills in Physics

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2. Foundations in Physics

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3. Forces and Motion

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4. Electrons, Waves and Photons

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OCR H556 chapter questions and answers

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Quiz

1.3.6 Circuits – Check yourself

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  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
A voltmeter is connected:
In series with the component
In parallel with the component
In parallel with the supply only
In series with the switch
2.
Which arrangement allows the voltage across a lamp to be varied smoothly from zero?
A rheostat in series
A fixed resistor in series
A second cell
A potential divider
3.
R1 = 6 Ω and R2 = 3 Ω in series across 9 V. The voltage across R1 is:
6 V
3 V
4.5 V
9 V
4.
The I–V graph of a filament lamp bends towards the voltage axis because:
The voltage is not constant
Resistance increases as the filament heats
Current decreases with voltage
The meter resistance changes
5.
In V = E − Ir, a graph of V against I has gradient:
E
r
−r
−E
6.
Why should the circuit be switched on only briefly while measuring a thin wire?
To save the battery only
To zero the meter
To stop heating that changes the resistance
To increase the current
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Part of 1. Development of Practical Skills in Physics — see every lesson and quiz in this unit.
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