Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 815 · 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 circuit diagram, which part is drawn as many long-short pairs? (a) voltmeter (b) battery (c) cell (d) diode
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the longer line (d) the shorter line
3. 3.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) motor (b) ammeter (c) junction (d) bulb
4. 4.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) switch (c) battery (d) bulb
5. 5.True or false: a long and a short line is the symbol for a diode. (a) True (b) False
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
7. 7.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) LED (c) cell (d) wire
8. 8.✏️ 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
9. 9.Which drawing is the symbol for an ammeter? (a) a straight line (b) one tall, one short bar (c) a long and a short line (d) a circle with A inside
10. 10.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) LED (c) motor (d) switch
11. 11.True or false: a long and a short line is the symbol for a junction. (a) True (b) False
12. 12.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a dot where wires meet (c) a circle with M inside (d) a small empty box
13. 13.Which drawing is the symbol for a battery? (a) triangle, bar and arrows (b) a circle with A inside (c) a circle with an X in it (d) two or more cell symbols
14. 14.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
15. 15.Which drawing is the symbol for an LED? (a) two or more cell symbols (b) a circle with an X in it (c) triangle, bar and arrows (d) a long and a short line
16. 16.Which drawing is the symbol for a resistor? (a) a straight line (b) a long and a short line (c) a plain rectangle (d) triangle against a bar
17. 17.Which drawing is the symbol for a cell? (a) a circle with M inside (b) two equal parallel lines (c) a long and a short line (d) a small empty box
18. 18.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) ammeter (b) switch (c) cell (d) diode
19. 19.True or false: a circle with an X in it is the symbol for a motor. (a) False (b) True
20. 20.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
21. 21.Which drawing is the symbol for a motor? (a) many long-short pairs (b) two equal parallel lines (c) a circle with M inside (d) a dot where wires meet
22. 22.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) switch (b) junction (c) resistor (d) cell
23. 23.Which drawing is the symbol for a capacitor? (a) many long-short pairs (b) two equal parallel lines (c) triangle, bar and arrows (d) a plain rectangle
24. 24.True or false: two or more cell symbols is the symbol for a diode. (a) True (b) False
25. 25.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
26. 26.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) motor (b) capacitor (c) wire (d) resistor
28. 28.True or false: triangle, bar and arrows is the symbol for a wire. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) bulb (c) resistor (d) motor
30. 30.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
31. 31.True or false: many long-short pairs is the symbol for an ammeter. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) ammeter (b) junction (c) switch (d) battery
33. 33.True or false: a circle with M inside is the symbol for a diode. (a) False (b) True
34. 34.True or false: a straight line is the symbol for a wire. (a) False (b) True
35. 35.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) wire (b) resistor (c) battery (d) voltmeter
36. 36.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) cell (c) bulb (d) capacitor
37. 37.True or false: a small empty box is the symbol for a capacitor. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) LED (c) junction (d) voltmeter
39. 39.True or false: a dot where wires meet is the symbol for an ammeter. (a) False (b) True
40. 40.Which drawing is the symbol for a switch? (a) a long and a short line (b) a dot where wires meet (c) a line lifted at a gap (d) a circle with a cross

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