Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 620 · 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 cross? (a) junction (b) bulb (c) ammeter (d) voltmeter
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) junction (b) battery (c) motor (d) voltmeter
3. 3.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) quick and clear for all (d) to hide the circuit
4. 4.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) ammeter (c) switch (d) LED
5. 5.True or false: a plain rectangle is the symbol for a bulb. (a) True (b) False
6. 6.Which drawing is the symbol for an ammeter? (a) a circle with V inside (b) a line lifted at a gap (c) a circle with a cross (d) a circle with A inside
7. 7.True or false: a long and a short line is the symbol for a diode. (a) False (b) True
8. 8.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
9. 9.True or false: a straight line is the symbol for a wire. (a) True (b) False
10. 10.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a long and a short line (c) a circle with a cross (d) a circle with an X in it
11. 11.Which drawing is the symbol for a battery? (a) a plain rectangle (b) many long-short pairs (c) a dot where wires meet (d) triangle against a bar
12. 12.Which drawing is the symbol for a diode? (a) a long and a short line (b) triangle against a bar (c) a line lifted at a gap (d) a small empty box
13. 13.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) resistor (c) capacitor (d) junction
14. 14.Which drawing is the symbol for a resistor? (a) triangle against a bar (b) a small empty box (c) a circle with A inside (d) a circle with a cross
15. 15.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
16. 16.Which drawing is the symbol for a cell? (a) a long and a short line (b) two or more cell symbols (c) a circle with a cross (d) triangle against a bar
17. 17.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
18. 18.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a long and a short line (c) a small empty box (d) triangle, bar and arrows
19. 19.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) ammeter (b) battery (c) voltmeter (d) diode
20. 20.True or false: many long-short pairs is the symbol for an ammeter. (a) True (b) False
21. 21.True or false: a circle with A inside is the symbol for a switch. (a) True (b) False
22. 22.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a circle with an X in it (c) a plain rectangle (d) a circle with A inside
23. 23.Which drawing is the symbol for a battery? (a) a plain rectangle (b) a dot where wires meet (c) two or more cell symbols (d) triangle against a bar
24. 24.True or false: triangle, bar and arrows is the symbol for a resistor. (a) True (b) False
25. 25.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) battery (c) capacitor (d) resistor
26. 26.True or false: one tall, one short bar is the symbol for a voltmeter. (a) False (b) True
27. 27.True or false: one tall, one short bar is the symbol for a battery. (a) False (b) True
28. 28.✏️ In a circuit diagram, which part is drawn as a straight line? (a) junction (b) capacitor (c) wire (d) ammeter
29. 29.True or false: a long and a short line is the symbol for a switch. (a) True (b) False
30. 30.Which drawing is the symbol for a junction? (a) triangle, bar and arrows (b) a dot where wires meet (c) a long and a short line (d) a small empty box
31. 31.True or false: a circle with M inside is the symbol for an ammeter. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) switch (c) motor (d) bulb
33. 33.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) cell (c) switch (d) voltmeter
34. 34.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
35. 35.True or false: a dot where wires meet is the symbol for a cell. (a) True (b) False
36. 36.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) capacitor (b) voltmeter (c) junction (d) cell
38. 38.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) wire (c) LED (d) capacitor
39. 39.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) LED (b) ammeter (c) switch (d) bulb

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