The newest 6 of 6 written questions. Open one to see it on the real paper.
In which direction do R and C move, and in which direction do the particles in the solid vibrate?
See it on the paper →Calculate the electrical energy supplied by the heating element in 30 minutes. Use your values in (d)(i) and the equation shown. electrical energy = V × I × 1800 electrical energy = J
See it on the paper →Calculate the efficiency of the heating element. Use your answers in (c)(ii) and (d)(ii) and the equation shown. efficiency = thermal energy × 100 electrical energy efficiency = %
See it on the paper →Suggest how the student can change the apparatus to improve the efficiency calculated in (e).
See it on the paper →The resistance of the lamp when lit is 1.5 Ω. The battery supplies a voltage of 12 V. Calculate the current through the lamp when lit. State the unit of your answer. current = unit
See it on the paper →Complete the sentence: An electric current in a metal is a flow of , which carry negative .
See it on the paper →This was answered well by many candidates. Frequent mistakes were to write energy instead of electrons and electrons instead of charges.
— Examiner report, May/June 2019, 0653/43 Q8(a) (Cambridge)
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