Electronics Worksheet: Circuit Symbols

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

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