Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 741 · 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: a line lifted at a gap is the symbol for a bulb. (a) False (b) True
2. 2.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
3. 3.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) LED (c) switch (d) wire
4. 4.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
5. 5.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) ammeter (b) resistor (c) switch (d) bulb
6. 6.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) wire (c) battery (d) LED
7. 7.Which drawing is the symbol for an LED? (a) many long-short pairs (b) a circle with A inside (c) two or more cell symbols (d) triangle, bar and arrows
8. 8.True or false: many long-short pairs is the symbol for a cell. (a) True (b) False
9. 9.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) capacitor (b) wire (c) switch (d) junction
10. 10.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to hide the circuit (d) to make it colourful
11. 11.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) neither line (d) the longer line
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) diode (c) cell (d) bulb
13. 13.True or false: a long and a short line is the symbol for a resistor. (a) True (b) False
14. 14.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
15. 15.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) two equal parallel lines (c) a plain rectangle (d) triangle, bar and arrows
16. 16.Which drawing is the symbol for a switch? (a) two equal parallel lines (b) a plain rectangle (c) a dot where wires meet (d) a line lifted at a gap
17. 17.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) junction (c) capacitor (d) cell
18. 18.True or false: a small empty box is the symbol for a motor. (a) True (b) False
19. 19.True or false: two equal parallel lines is the symbol for a switch. (a) False (b) True
20. 20.Which drawing is the symbol for a resistor? (a) triangle against a bar (b) a plain rectangle (c) one tall, one short bar (d) a circle with V inside
21. 21.Which drawing is the symbol for a diode? (a) two or more cell symbols (b) one tall, one short bar (c) a circle with A inside (d) triangle against a bar
22. 22.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) bulb (b) switch (c) resistor (d) junction
23. 23.True or false: a straight line is the symbol for a wire. (a) False (b) True
24. 24.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) a circle with V inside (c) triangle, bar and arrows (d) a plain rectangle
25. 25.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
26. 26.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) two equal parallel lines (c) triangle, bar and arrows (d) a small empty box
27. 27.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
28. 28.Which drawing is the symbol for a motor? (a) a small empty box (b) triangle against a bar (c) a circle with M inside (d) one tall, one short bar
29. 29.Which drawing is the symbol for a junction? (a) a long and a short line (b) a small empty box (c) a dot where wires meet (d) a plain rectangle
30. 30.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) LED (c) bulb (d) voltmeter
31. 31.Which drawing is the symbol for a wire? (a) triangle, bar and arrows (b) a circle with M inside (c) a line lifted at a gap (d) a straight line
32. 32.Which drawing is the symbol for an ammeter? (a) a circle with V inside (b) a circle with A inside (c) a plain rectangle (d) a circle with an X in it
33. 33.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) a circle with a cross (c) a long and a short line (d) a dot where wires meet
34. 34.Which drawing is the symbol for a cell? (a) a circle with a cross (b) a circle with an X in it (c) one tall, one short bar (d) a circle with M inside
35. 35.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) motor (b) wire (c) switch (d) cell
36. 36.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
37. 37.True or false: a circle with A inside is the symbol for a voltmeter. (a) False (b) True
38. 38.True or false: a line lifted at a gap is the symbol for a wire. (a) True (b) False
39. 39.True or false: a circle with V inside is the symbol for a wire. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) LED (c) motor (d) capacitor

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