Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 98 · 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 battery? (a) many long-short pairs (b) a circle with an X in it (c) a long and a short line (d) a small empty box
2. 2.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) a circle with an X in it (c) a dot where wires meet (d) two equal parallel lines
3. 3.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) neither line (d) the longer line
5. 5.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to make it colourful (d) to hide the circuit
6. 6.Which drawing is the symbol for a junction? (a) a circle with M inside (b) two or more cell symbols (c) a dot where wires meet (d) a straight line
7. 7.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) two equal parallel lines (c) a line lifted at a gap (d) a circle with a cross
8. 8.Which drawing is the symbol for a wire? (a) a circle with M inside (b) many long-short pairs (c) two equal parallel lines (d) a straight line
9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
10. 10.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) switch (c) diode (d) resistor
11. 11.Which drawing is the symbol for a motor? (a) a circle with M inside (b) one tall, one short bar (c) a line lifted at a gap (d) a straight line
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) diode (b) motor (c) wire (d) cell
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) motor (c) cell (d) bulb
14. 14.✏️ In a circuit diagram, which part is drawn as a straight line? (a) motor (b) capacitor (c) wire (d) battery
15. 15.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) wire (b) LED (c) diode (d) capacitor
16. 16.True or false: a straight line is the symbol for a wire. (a) False (b) True
17. 17.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
18. 18.Which drawing is the symbol for an LED? (a) a straight line (b) triangle, bar and arrows (c) a circle with a cross (d) a line lifted at a gap
19. 19.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) many long-short pairs (c) a long and a short line (d) triangle against a bar
20. 20.True or false: a circle with an X in it is the symbol for an ammeter. (a) True (b) False
21. 21.True or false: one tall, one short bar is the symbol for a wire. (a) False (b) True
22. 22.True or false: many long-short pairs is the symbol for a wire. (a) True (b) False
23. 23.True or false: a line lifted at a gap is the symbol for a capacitor. (a) True (b) False
24. 24.Which drawing is the symbol for a switch? (a) a small empty box (b) a dot where wires meet (c) many long-short pairs (d) a line lifted at a gap
25. 25.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) ammeter (c) junction (d) capacitor
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) wire (b) ammeter (c) diode (d) motor
27. 27.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) junction (b) resistor (c) battery (d) motor
28. 28.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
29. 29.True or false: a plain rectangle is the symbol for an LED. (a) False (b) True
30. 30.Which drawing is the symbol for a voltmeter? (a) triangle, bar and arrows (b) a circle with a cross (c) a long and a short line (d) a circle with V inside
31. 31.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) two or more cell symbols (c) a dot where wires meet (d) a long and a short line
32. 32.True or false: two equal parallel lines is the symbol for a junction. (a) True (b) False
33. 33.Which drawing is the symbol for a battery? (a) a circle with a cross (b) a circle with V inside (c) a circle with M inside (d) two or more cell symbols
34. 34.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
35. 35.True or false: triangle against a bar is the symbol for a bulb. (a) False (b) True
36. 36.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) bulb (c) ammeter (d) junction
37. 37.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
38. 38.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
39. 39.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) wire (c) resistor (d) diode
40. 40.True or false: a long and a short line is the symbol for a cell. (a) False (b) True

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