page 17 22. A student sets up a circuit and measures the voltage across and the current in a resistor. The measurements and their uncertainties are voltage = (10ā0 Ā± 0ā1)āV current = (0ā50 Ā± 0ā01)āA The approximate absolute uncertainty in the calculated value of the resistance of the resistor is A Ā±0Ā·11āĪ© B Ā±0Ā·2āĪ© C Ā±0Ā·4āĪ© D Ā±1āĪ© E Ā±2āĪ©. 23. A circuit is set up as shown. 3Ā·0āĪ© 6Ā·0āV 6Ā·0āĪ© ā + The power supply has negligible internal resistance. The power dissipated in the 3ā0āĪ© resistor is A 3ā0āW B 6ā0āW C 9ā0āW D 12āW E 18āW. [Turn over
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This question is part of the UK A-Level Physics syllabus. In the actual exam, structured questions typically require linking specific keywords to gain full marks. Applaa helps you drill these topics.
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