Physics 0625 · IGCSE · Electric circuits

Electric circuits — practice question

(a)[1]

In the space provided, Draw the usual symbol for a light-emitting diode (LED).

(b)[1]

State the name of the logic gate that matches this truth table.

(c(i))[2]

Draw your circuit in the space below. You do not need to use the symbol for the logic gate. Boxes showing the two inputs and one output are enough.

(c(ii))[1]

Label an intermediate point of your circuit with the letter X. Fill in the blank column of the table with the logic levels for this point.

Worked solution & mark scheme

This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: 2→4 outward arrows at any angle (LED emitting)

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