A-Level PhysicsYear 2021Q10
Turn over 7 10 Two resistors are connected as shown. 180 Ω 120 Ω (a) Show that the resistance of the combination is about 70 Ω. (2) .................................................................................................................................................................................................................................................. .................................................................................................................................................................................................................................................. .................................................................................................................................................................................................................................................. .................................................................................................................................................................................................................................................. (b) This resistor combination is connected to a battery of e.m.f. ε and internal resistance r. 120 Ω 180 Ω The switch is closed for 5 minutes. Calculate the energy dissipated in the resistor combination. ε = 9.0 V r = 2.5 Ω (4) .................................................................................................................................................................................................................................................. .................................................................................................................................................................................................................................................. .................................................................................................................................................................................................................................................. .................................................................................................................................................................................................................................................. .................................................................................................................................................................................................................................................. .................................................................................................................................................................................................................................................. Energy dissipated in resistor combination = ...................................................... (Total for Question 10 = 6 marks)
Paper Source:8PH0_01_que_20211009.pdf
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Exam Specification Info
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.
Syllabus levelAdvanced Level (A-Level)
SubjectPhysics
Official MarksVariable (2–6 marks)