The newest 10 of 10 written questions. Open one to see it on the real paper.
What is the rate of flow of charge through the resistor?
See it on the paper →Which two changes must result in a smaller current in the circuit?
See it on the paper →Fig. 3.1 shows the electrical symbol for a circuit component. M Fig. 3.1 State the name of the component.
See it on the paper →Which expression is equal to current?
See it on the paper →Complete these sentences. Potential difference is measured in units called . The current in the circuit is a flow of .
See it on the paper →Ammeters are used to measure current. State the name of the unit of current.
See it on the paper →One headlamp requires a current of 5 A. The headlamp is switched on for five hours. Calculate the total charge that flows through the headlamp in this time. charge = C
See it on the paper →Fig. 4.3 shows the ammeter and voltmeter readings when the circuit is switched on. 1 2 3 4 0 2 1 5 3 0 4 5 A V ammeter voltmeter Fig. 4.3 Record the current I in the circuit and also the potential difference V across the coil of wire (heating element). I = A
See it on the paper →• (i) • • • The student connects the crocodile clip at X so that the length of resistance wire in the circuit is 100.0 cm. He closes the switch. He measures and records the potential difference (p.d.) across the wire and the current through the wire. He opens the switch. Fig. 3.2 shows the voltmeter and ammeter reading...
See it on the paper →Calculate the electric charge that flows when a current of 25 A flows for 60 s. Show your working and state the unit of your answer. charge = unit
See it on the paper →Some candidates correctly stated the name of the unit of current. A common incorrect answer was I, the symbol for current.
— Examiner report, October/November 2022, 0653/33 Q6(a)(ii) (Cambridge)
Some candidates completed this calculation correctly. Many other candidates did not do the conversion of time correctly. To work out the charge in coulombs, the quantities should be amperes and seconds. Some candidates did not do the time conversion at all or converted the time to minutes instead of seconds. In these answers some credit could be given, but candidates who did not show their working...
— Examiner report, October/November 2021, 0653/43 Q9(b) (Cambridge)
Final answer 1500 C. The relationship Q = I t was familiar to many candidates who went on to score two or three marks. A common reason for loss of a mark was an incorrect unit, usually J or W.
— Examiner report, May/June 2019, 0653/43 Q8(b)(ii) (Cambridge)
Past papers, syllabus and examiner reports © UCLES (Cambridge University Press & Assessment). Questions are matched to topics from the official syllabus. AssessPro is independent and not endorsed by Cambridge.