Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 601 · 40 questions

Remember (Shape tells the part): Cell: long and short line (long = +). Battery: two or more cells. Wire: straight line. Junction: a dot. Bulb: circle with a cross. Switch: line lifted at a gap. Resistor: rectangle. Capacitor: two equal parallel lines. Diode: triangle against a bar; LED: the same with two arrows out. Circle with M = motor, A = ammeter, V = voltmeter.

1. 1.Which drawing is the symbol for a resistor? (a) a circle with an X in it (b) two or more cell symbols (c) triangle against a bar (d) a plain rectangle
2. 2.True or false: a small empty box is the symbol for a junction. (a) True (b) False
3. 3.Which drawing is the symbol for a voltmeter? (a) a dot where wires meet (b) a circle with A inside (c) a circle with a cross (d) a circle with V inside
4. 4.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) resistor (c) cell (d) LED
5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) little stars (d) wavy lines
6. 6.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a circle with M inside (c) two or more cell symbols (d) a circle with a cross
7. 7.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) symbols are heavier (d) to make it colourful
8. 8.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) voltmeter (b) capacitor (c) LED (d) cell
9. 9.Which drawing is the symbol for a diode? (a) a circle with an X in it (b) one tall, one short bar (c) a long and a short line (d) triangle against a bar
10. 10.True or false: a circle with A inside is the symbol for a capacitor. (a) False (b) True
11. 11.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
12. 12.✏️ In a circuit diagram, which part is drawn as a straight line? (a) ammeter (b) LED (c) junction (d) wire
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) motor (c) bulb (d) capacitor
14. 14.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) many long-short pairs (c) a line lifted at a gap (d) a plain rectangle
15. 15.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) LED (c) motor (d) junction
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) switch (c) cell (d) battery
17. 17.Which drawing is the symbol for a cell? (a) a plain rectangle (b) a long and a short line (c) two equal parallel lines (d) a line lifted at a gap
18. 18.True or false: a line lifted at a gap is the symbol for a wire. (a) True (b) False
19. 19.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
20. 20.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) voltmeter (c) junction (d) LED
21. 21.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) motor (c) capacitor (d) LED
22. 22.Which drawing is the symbol for an ammeter? (a) a straight line (b) a circle with A inside (c) a circle with an X in it (d) a line lifted at a gap
23. 23.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) a small empty box (c) one tall, one short bar (d) a circle with an X in it
24. 24.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) motor (b) capacitor (c) LED (d) cell
25. 25.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
26. 26.True or false: a line lifted at a gap is the symbol for a motor. (a) True (b) False
27. 27.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
28. 28.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
29. 29.Which drawing is the symbol for a switch? (a) a long and a short line (b) a line lifted at a gap (c) two equal parallel lines (d) triangle, bar and arrows
30. 30.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) LED (c) ammeter (d) resistor
31. 31.Which drawing is the symbol for a battery? (a) a small empty box (b) a long and a short line (c) two or more cell symbols (d) triangle, bar and arrows
32. 32.True or false: a circle with a cross is the symbol for a junction. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) cell (c) voltmeter (d) bulb
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) diode (c) bulb (d) motor
35. 35.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) voltmeter (c) resistor (d) battery
36. 36.True or false: a line lifted at a gap is the symbol for a cell. (a) True (b) False
37. 37.Which drawing is the symbol for a junction? (a) a circle with a cross (b) triangle against a bar (c) a line lifted at a gap (d) a dot where wires meet
38. 38.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
39. 39.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) two equal parallel lines (c) a circle with V inside (d) a small empty box
40. 40.True or false: a circle with a cross is the symbol for a cell. (a) False (b) True

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