Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 708 · 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 small empty box? (a) bulb (b) voltmeter (c) LED (d) resistor
2. 2.True or false: a small empty box is the symbol for a cell. (a) False (b) True
3. 3.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a straight line (c) triangle against a bar (d) two or more cell symbols
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
5. 5.Which drawing is the symbol for a junction? (a) two equal parallel lines (b) a dot where wires meet (c) two or more cell symbols (d) a long and a short line
6. 6.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) voltmeter (c) cell (d) resistor
7. 7.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
8. 8.True or false: a line lifted at a gap is the symbol for a cell. (a) True (b) False
9. 9.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a line lifted at a gap (c) a plain rectangle (d) many long-short pairs
10. 10.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a dot where wires meet (c) one tall, one short bar (d) two equal parallel lines
11. 11.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
12. 12.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with V inside (c) a circle with a cross (d) a plain rectangle
13. 13.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) to make it colourful (d) quick and clear for all
14. 14.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) bulb (c) resistor (d) capacitor
15. 15.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) bulb (c) battery (d) cell
16. 16.True or false: a long and a short line is the symbol for an ammeter. (a) False (b) True
17. 17.Which drawing is the symbol for a capacitor? (a) a circle with an X in it (b) a small empty box (c) a circle with a cross (d) two equal parallel lines
18. 18.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) wavy lines (d) little stars
19. 19.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) LED (c) wire (d) battery
20. 20.Which drawing is the symbol for a bulb? (a) a straight line (b) a circle with a cross (c) triangle, bar and arrows (d) a line lifted at a gap
21. 21.Which drawing is the symbol for a battery? (a) a circle with a cross (b) two or more cell symbols (c) two equal parallel lines (d) a circle with an X in it
22. 22.Which drawing is the symbol for a motor? (a) triangle against a bar (b) a circle with M inside (c) two or more cell symbols (d) triangle, bar and arrows
23. 23.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) cell (c) battery (d) voltmeter
24. 24.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) junction (b) LED (c) switch (d) cell
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) battery (c) diode (d) ammeter
26. 26.Which drawing is the symbol for a cell? (a) a straight line (b) a long and a short line (c) a plain rectangle (d) a small empty box
27. 27.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
28. 28.True or false: one tall, one short bar is the symbol for a junction. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) diode (b) wire (c) switch (d) bulb
30. 30.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) voltmeter (b) capacitor (c) resistor (d) LED
31. 31.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
32. 32.True or false: a small empty box is the symbol for a capacitor. (a) True (b) False
33. 33.True or false: a circle with an X in it is the symbol for a switch. (a) False (b) True
34. 34.True or false: a circle with V inside is the symbol for a battery. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) diode (c) resistor (d) LED
36. 36.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) motor (c) ammeter (d) junction
38. 38.True or false: two equal parallel lines is the symbol for an ammeter. (a) True (b) False
39. 39.Which drawing is the symbol for a wire? (a) many long-short pairs (b) a circle with a cross (c) a circle with M inside (d) a straight line
40. 40.True or false: a circle with an X in it is the symbol for a cell. (a) False (b) True

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