Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 809 · 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 switch? (a) two equal parallel lines (b) a circle with V inside (c) triangle, bar and arrows (d) a line lifted at a gap
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.Which drawing is the symbol for a wire? (a) a straight line (b) triangle, bar and arrows (c) a circle with an X in it (d) a plain rectangle
4. 4.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) diode (c) junction (d) LED
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) battery (c) switch (d) resistor
6. 6.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) diode (b) switch (c) capacitor (d) motor
7. 7.True or false: a straight line is the symbol for a wire. (a) True (b) False
8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) little stars (d) wavy lines
9. 9.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
10. 10.True or false: two equal parallel lines is the symbol for a bulb. (a) True (b) False
11. 11.Which drawing is the symbol for a junction? (a) a straight line (b) many long-short pairs (c) triangle, bar and arrows (d) a dot where wires meet
12. 12.True or false: a circle with A inside is the symbol for a motor. (a) False (b) True
13. 13.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) capacitor (b) junction (c) LED (d) wire
14. 14.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) resistor (b) ammeter (c) LED (d) battery
15. 15.✏️ 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
16. 16.True or false: a circle with a cross is the symbol for an LED. (a) False (b) True
17. 17.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
18. 18.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) LED (c) bulb (d) diode
19. 19.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) one tall, one short bar (c) two equal parallel lines (d) a circle with an X in it
20. 20.True or false: a circle with M inside is the symbol for an ammeter. (a) True (b) False
21. 21.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) a plain rectangle (c) a long and a short line (d) triangle, bar and arrows
22. 22.True or false: a circle with V inside is the symbol for a bulb. (a) True (b) False
23. 23.Which drawing is the symbol for an LED? (a) a line lifted at a gap (b) a straight line (c) a circle with an X in it (d) triangle, bar and arrows
24. 24.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) battery (c) wire (d) resistor
25. 25.True or false: a small empty box is the symbol for a bulb. (a) True (b) False
26. 26.Which drawing is the symbol for a voltmeter? (a) a dot where wires meet (b) a long and a short line (c) a small empty box (d) a circle with V inside
27. 27.True or false: a circle with V inside is the symbol for an ammeter. (a) True (b) False
28. 28.True or false: a dot where wires meet is the symbol for a bulb. (a) True (b) False
29. 29.True or false: two or more cell symbols is the symbol for a motor. (a) False (b) True
30. 30.True or false: a circle with M inside is the symbol for an LED. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) resistor (b) capacitor (c) ammeter (d) motor
32. 32.Which drawing is the symbol for a motor? (a) a circle with an X in it (b) a long and a short line (c) one tall, one short bar (d) a circle with M inside
33. 33.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) bulb (b) resistor (c) junction (d) wire
34. 34.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) one tall, one short bar (c) a circle with a cross (d) a straight line
35. 35.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) battery (c) junction (d) diode
36. 36.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) wire (c) cell (d) switch
37. 37.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a straight line (c) a line lifted at a gap (d) one tall, one short bar
38. 38.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
39. 39.True or false: a circle with an X in it is the symbol for an LED. (a) True (b) False
40. 40.Which drawing is the symbol for a battery? (a) a small empty box (b) a circle with A inside (c) two or more cell symbols (d) a circle with a cross

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