Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 201 · 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 one tall, one short bar? (a) bulb (b) diode (c) cell (d) capacitor
2. 2.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) motor (b) cell (c) battery (d) bulb
3. 3.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a long and a short line (c) a small empty box (d) many long-short pairs
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) both lines (d) the shorter line
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) resistor (c) ammeter (d) motor
6. 6.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) symbols are heavier (d) quick and clear for all
7. 7.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) resistor (c) voltmeter (d) junction
8. 8.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) capacitor (c) cell (d) wire
9. 9.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
10. 10.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a plain rectangle (c) many long-short pairs (d) a circle with M inside
11. 11.Which drawing is the symbol for a wire? (a) a circle with a cross (b) a line lifted at a gap (c) a straight line (d) a long and a short line
12. 12.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
13. 13.Which drawing is the symbol for a cell? (a) a line lifted at a gap (b) triangle, bar and arrows (c) a plain rectangle (d) one tall, one short bar
14. 14.Which drawing is the symbol for a diode? (a) triangle against a bar (b) triangle, bar and arrows (c) a circle with an X in it (d) a plain rectangle
15. 15.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) diode (c) battery (d) ammeter
16. 16.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) LED (c) voltmeter (d) cell
18. 18.True or false: a straight line is the symbol for a battery. (a) False (b) True
19. 19.True or false: a straight line is the symbol for a wire. (a) True (b) False
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) battery (c) voltmeter (d) bulb
21. 21.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) diode (b) LED (c) capacitor (d) cell
22. 22.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) resistor (b) cell (c) battery (d) diode
23. 23.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
24. 24.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) triangle, bar and arrows
25. 25.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
26. 26.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
27. 27.True or false: two or more cell symbols is the symbol for an LED. (a) True (b) False
28. 28.True or false: a circle with M inside is the symbol for a wire. (a) False (b) True
29. 29.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) one tall, one short bar (c) triangle against a bar (d) a circle with a cross
30. 30.Which drawing is the symbol for a battery? (a) a small empty box (b) many long-short pairs (c) a circle with a cross (d) a circle with an X in it
31. 31.Which drawing is the symbol for a switch? (a) a circle with a cross (b) two or more cell symbols (c) a straight line (d) a line lifted at a gap
32. 32.Which drawing is the symbol for an ammeter? (a) triangle against a bar (b) a long and a short line (c) triangle, bar and arrows (d) a circle with A inside
33. 33.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) junction (c) bulb (d) LED
34. 34.Which drawing is the symbol for a motor? (a) a long and a short line (b) a line lifted at a gap (c) a circle with M inside (d) two equal parallel lines
35. 35.True or false: a line lifted at a gap is the symbol for an LED. (a) False (b) True
36. 36.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) motor (b) diode (c) wire (d) battery
38. 38.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) wire (b) motor (c) switch (d) cell
40. 40.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True

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