Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 789 · 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.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) neither line (d) the shorter line
2. 2.Which drawing is the symbol for a motor? (a) one tall, one short bar (b) a circle with M inside (c) two equal parallel lines (d) triangle, bar and arrows
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
4. 4.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) cell (c) capacitor (d) ammeter
5. 5.Which drawing is the symbol for a battery? (a) many long-short pairs (b) triangle against a bar (c) a dot where wires meet (d) a straight line
6. 6.True or false: a plain rectangle is the symbol for a switch. (a) False (b) True
7. 7.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a plain rectangle (c) a circle with an X in it (d) two or more cell symbols
8. 8.Which drawing is the symbol for an LED? (a) a circle with M inside (b) a long and a short line (c) two or more cell symbols (d) triangle, bar and arrows
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) switch (b) cell (c) voltmeter (d) ammeter
10. 10.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
11. 11.True or false: a line lifted at a gap is the symbol for an LED. (a) True (b) False
12. 12.True or false: two or more cell symbols is the symbol for a resistor. (a) True (b) False
13. 13.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) diode (b) battery (c) resistor (d) LED
14. 14.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) triangle, bar and arrows (c) a line lifted at a gap (d) two equal parallel lines
15. 15.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) junction (b) wire (c) diode (d) LED
16. 16.True or false: a circle with M inside is the symbol for an ammeter. (a) True (b) False
17. 17.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) switch (b) junction (c) battery (d) LED
19. 19.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) a circle with a cross (c) a long and a short line (d) many long-short pairs
20. 20.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) quick and clear for all (d) symbols are heavier
21. 21.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) wire (c) diode (d) bulb
22. 22.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
23. 23.Which drawing is the symbol for a switch? (a) a plain rectangle (b) a dot where wires meet (c) a line lifted at a gap (d) a straight line
24. 24.True or false: a circle with M inside is the symbol for a bulb. (a) True (b) False
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) battery (c) resistor (d) motor
26. 26.Which drawing is the symbol for a cell? (a) a circle with a cross (b) one tall, one short bar (c) two equal parallel lines (d) triangle against a bar
27. 27.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) voltmeter (b) diode (c) LED (d) resistor
28. 28.True or false: a circle with a cross is the symbol for a diode. (a) False (b) True
29. 29.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a dot where wires meet (c) a circle with an X in it (d) many long-short pairs
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) junction (b) ammeter (c) cell (d) motor
31. 31.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
32. 32.Which drawing is the symbol for a diode? (a) two equal parallel lines (b) a circle with a cross (c) a circle with M inside (d) triangle against a bar
33. 33.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) cell (c) ammeter (d) capacitor
34. 34.True or false: one tall, one short bar is the symbol for a motor. (a) False (b) True
35. 35.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a circle with a cross (c) triangle, bar and arrows (d) a long and a short line
36. 36.Which drawing is the symbol for a wire? (a) triangle, bar and arrows (b) a straight line (c) a circle with V inside (d) a circle with an X in it
37. 37.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) battery (c) voltmeter (d) cell
38. 38.Which drawing is the symbol for a resistor? (a) a line lifted at a gap (b) triangle, bar and arrows (c) two or more cell symbols (d) a small empty box
39. 39.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) two or more cell symbols (c) a circle with M inside (d) a circle with an X in it
40. 40.True or false: many long-short pairs is the symbol for a voltmeter. (a) True (b) False

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