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CAIE IGCSE Physics 4.3.2.8 Circuit Rules a Current Into a Questions

Learn how junction rules set branch currents and how supply voltage divides across series resistors.

Syllabus
2026–2028
Course
Physics 0625

Exam points

  • use junction rules to compare ammeter readings in parallel branches
  • calculate p.d. across series resistors from supply voltage ratios
  • explain zero current when diode orientation blocks a branch

CAIE IGCSE Physics 4.3.2.8 Circuit Rules a Current Into a Questions question 1

[Maximum number: 4]

Question (a)

(a)

Fig. 6.2 shows an electric circuit.

Fig. 6.2

Fig. 6.2

[ 4 ]

Question (i)

(i)

Calculate the reading on the voltmeter.
voltmeter reading =

[ 2 ]

Question (ii)

(ii)

Determine the current in the 2.1Ω2.1 \Omega resistor.

current =
[ 1 ]

Question (iii)

(iii)

Determine the reading on the ammeter.

ammeter reading =
[ 1 ]
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