Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 980 · 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 a circle with A inside? (a) wire (b) bulb (c) capacitor (d) ammeter
2. 2.Which drawing is the symbol for an LED? (a) triangle against a bar (b) a small empty box (c) triangle, bar and arrows (d) two or more cell symbols
3. 3.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) quick and clear for all (d) symbols are heavier
4. 4.True or false: a small empty box is the symbol for a bulb. (a) True (b) False
5. 5.True or false: a straight line is the symbol for a switch. (a) True (b) False
6. 6.Which drawing is the symbol for a junction? (a) one tall, one short bar (b) a plain rectangle (c) a dot where wires meet (d) two or more cell symbols
7. 7.True or false: many long-short pairs is the symbol for a diode. (a) False (b) True
8. 8.True or false: a straight line is the symbol for an ammeter. (a) True (b) False
9. 9.Which drawing is the symbol for a motor? (a) a straight line (b) two or more cell symbols (c) a circle with M inside (d) a circle with A inside
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
11. 11.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) switch (b) junction (c) wire (d) voltmeter
13. 13.Which drawing is the symbol for a diode? (a) a circle with an X in it (b) a circle with V inside (c) triangle against a bar (d) triangle, bar and arrows
14. 14.Which drawing is the symbol for a switch? (a) a circle with M inside (b) one tall, one short bar (c) a line lifted at a gap (d) a circle with V inside
15. 15.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a straight line (c) a circle with an X in it (d) one tall, one short bar
16. 16.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
17. 17.True or false: a small empty box is the symbol for a cell. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) diode (c) motor (d) switch
19. 19.True or false: a line lifted at a gap is the symbol for a diode. (a) True (b) False
20. 20.True or false: a dot where wires meet is the symbol for a battery. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) LED (c) ammeter (d) resistor
22. 22.True or false: a circle with a cross is the symbol for an LED. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) switch (c) resistor (d) bulb
24. 24.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) voltmeter (c) cell (d) ammeter
25. 25.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) a long and a short line (c) a circle with A inside (d) a small empty box
26. 26.True or false: a circle with A inside is the symbol for a switch. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) diode (c) LED (d) bulb
28. 28.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
29. 29.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a plain rectangle (c) a dot where wires meet (d) a small empty box
30. 30.True or false: a circle with V inside is the symbol for a diode. (a) True (b) False
31. 31.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
32. 32.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) wire (c) capacitor (d) motor
34. 34.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a plain rectangle (c) triangle, bar and arrows (d) a circle with M inside
35. 35.Which drawing is the symbol for a capacitor? (a) triangle against a bar (b) a long and a short line (c) a circle with V inside (d) two equal parallel lines
36. 36.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
37. 37.Which drawing is the symbol for a cell? (a) a plain rectangle (b) triangle against a bar (c) many long-short pairs (d) a long and a short line
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) LED (b) bulb (c) capacitor (d) switch
39. 39.True or false: a circle with a cross is the symbol for a switch. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) wire (c) diode (d) resistor

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