Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 659 · 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 an ammeter? (a) a plain rectangle (b) one tall, one short bar (c) a circle with a cross (d) a circle with A inside
2. 2.Which drawing is the symbol for a wire? (a) a straight line (b) a long and a short line (c) a circle with M inside (d) a dot where wires meet
3. 3.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
4. 4.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
5. 5.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) motor (b) junction (c) diode (d) resistor
6. 6.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) quick and clear for all (d) to make it colourful
7. 7.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
8. 8.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) triangle against a bar (c) a circle with a cross (d) two or more cell symbols
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) LED (c) diode (d) battery
10. 10.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) diode (c) battery (d) capacitor
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) switch (b) ammeter (c) diode (d) capacitor
12. 12.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) cell (c) wire (d) resistor
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) wire (b) capacitor (c) bulb (d) cell
14. 14.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) resistor (c) motor (d) ammeter
15. 15.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
16. 16.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) motor (b) wire (c) junction (d) cell
17. 17.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
18. 18.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) LED (c) switch (d) motor
19. 19.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) ammeter (b) junction (c) cell (d) resistor
20. 20.True or false: one tall, one short bar is the symbol for a voltmeter. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) battery (c) cell (d) bulb
22. 22.Which drawing is the symbol for a battery? (a) many long-short pairs (b) triangle against a bar (c) a small empty box (d) a circle with an X in it
23. 23.Which drawing is the symbol for a voltmeter? (a) one tall, one short bar (b) a circle with a cross (c) two equal parallel lines (d) a circle with V inside
24. 24.Which drawing is the symbol for a switch? (a) a long and a short line (b) a line lifted at a gap (c) triangle, bar and arrows (d) a circle with A inside
25. 25.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with an X in it (c) a circle with M inside (d) triangle, bar and arrows
26. 26.True or false: a circle with M inside is the symbol for a switch. (a) False (b) True
27. 27.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
28. 28.Which drawing is the symbol for an LED? (a) many long-short pairs (b) triangle, bar and arrows (c) one tall, one short bar (d) a line lifted at a gap
29. 29.True or false: a straight line is the symbol for a wire. (a) True (b) False
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) battery (c) voltmeter (d) diode
31. 31.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
32. 32.Which drawing is the symbol for a cell? (a) a circle with a cross (b) triangle against a bar (c) two equal parallel lines (d) a long and a short line
33. 33.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
34. 34.True or false: a straight line is the symbol for a motor. (a) True (b) False
35. 35.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
36. 36.True or false: a plain rectangle is the symbol for a cell. (a) True (b) False
37. 37.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a plain rectangle (c) one tall, one short bar (d) triangle, bar and arrows
38. 38.True or false: a straight line is the symbol for a junction. (a) False (b) True
39. 39.Which drawing is the symbol for a battery? (a) two equal parallel lines (b) a dot where wires meet (c) a long and a short line (d) two or more cell symbols
40. 40.Which drawing is the symbol for a motor? (a) a circle with an X in it (b) a long and a short line (c) triangle against a bar (d) a circle with M inside

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