Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 325 · 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.True or false: triangle against a bar is the symbol for a resistor. (a) True (b) False
2. 2.✏️ 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
3. 3.Which drawing is the symbol for a battery? (a) triangle against a bar (b) a plain rectangle (c) many long-short pairs (d) a long and a short line
4. 4.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) switch (c) motor (d) ammeter
5. 5.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a long and a short line (c) a circle with an X in it (d) two or more cell symbols
6. 6.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
7. 7.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) resistor (c) bulb (d) diode
8. 8.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) the shorter line (d) both lines
9. 9.True or false: a dot where wires meet is the symbol for a capacitor. (a) False (b) True
10. 10.True or false: a plain rectangle is the symbol for a cell. (a) True (b) False
11. 11.True or false: a circle with an X in it is the symbol for a diode. (a) True (b) False
12. 12.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) triangle, bar and arrows (c) one tall, one short bar (d) a straight line
13. 13.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
14. 14.Which drawing is the symbol for a motor? (a) two or more cell symbols (b) a line lifted at a gap (c) one tall, one short bar (d) a circle with M inside
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) resistor (c) bulb (d) junction
16. 16.Which drawing is the symbol for a cell? (a) a small empty box (b) a circle with V inside (c) a circle with A inside (d) a long and a short line
17. 17.True or false: a long and a short line is the symbol for a motor. (a) True (b) False
18. 18.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) diode (b) LED (c) cell (d) voltmeter
19. 19.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a small empty box (c) a plain rectangle (d) a circle with a cross
20. 20.Which drawing is the symbol for a switch? (a) triangle, bar and arrows (b) a circle with an X in it (c) a line lifted at a gap (d) a long and a short line
21. 21.True or false: a circle with A inside is the symbol for a voltmeter. (a) False (b) True
22. 22.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) wavy lines (d) little stars
23. 23.Which drawing is the symbol for a battery? (a) a circle with a cross (b) a line lifted at a gap (c) two or more cell symbols (d) a small empty box
24. 24.True or false: a circle with a cross is the symbol for a diode. (a) True (b) False
25. 25.True or false: a long and a short line is the symbol for a capacitor. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) resistor (c) voltmeter (d) diode
27. 27.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) wire (c) junction (d) capacitor
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) LED (c) motor (d) voltmeter
29. 29.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) switch (c) resistor (d) bulb
30. 30.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
31. 31.True or false: a small empty box is the symbol for a voltmeter. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) ammeter (b) switch (c) bulb (d) battery
33. 33.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) two equal parallel lines (c) a long and a short line (d) a circle with an X in it
34. 34.Which drawing is the symbol for a diode? (a) a long and a short line (b) many long-short pairs (c) triangle against a bar (d) a circle with M inside
35. 35.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) switch (c) wire (d) diode
36. 36.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
37. 37.True or false: a small empty box is the symbol for a bulb. (a) False (b) True
38. 38.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
39. 39.True or false: a line lifted at a gap is the symbol for a battery. (a) False (b) True
40. 40.Which drawing is the symbol for a voltmeter? (a) many long-short pairs (b) a small empty box (c) a circle with V inside (d) a dot where wires meet

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