Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 258 · 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 V inside? (a) wire (b) voltmeter (c) switch (d) ammeter
2. 2.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) symbols are heavier (d) to hide the circuit
3. 3.Which drawing is the symbol for a resistor? (a) a straight line (b) a circle with a cross (c) a small empty box (d) a line lifted at a gap
4. 4.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) a circle with an X in it (c) many long-short pairs (d) a long and a short line
5. 5.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
6. 6.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
7. 7.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) both lines (d) neither line
8. 8.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) bulb (c) capacitor (d) cell
9. 9.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a straight line (c) many long-short pairs (d) a circle with a cross
10. 10.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
11. 11.Which drawing is the symbol for a diode? (a) a circle with V inside (b) one tall, one short bar (c) triangle against a bar (d) a circle with an X in it
12. 12.Which drawing is the symbol for a capacitor? (a) a circle with M inside (b) a plain rectangle (c) a long and a short line (d) two equal parallel lines
13. 13.True or false: a plain rectangle is the symbol for an LED. (a) True (b) False
14. 14.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) many long-short pairs (c) a straight line (d) a plain rectangle
15. 15.True or false: triangle against a bar is the symbol for a resistor. (a) True (b) False
16. 16.True or false: a circle with A inside is the symbol for an LED. (a) True (b) False
17. 17.True or false: a line lifted at a gap is the symbol for a motor. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) wire (c) battery (d) resistor
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) LED (c) wire (d) bulb
20. 20.Which drawing is the symbol for a switch? (a) a circle with V inside (b) a line lifted at a gap (c) one tall, one short bar (d) a dot where wires meet
21. 21.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
22. 22.True or false: triangle against a bar is the symbol for an ammeter. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) voltmeter (b) junction (c) capacitor (d) bulb
24. 24.True or false: a circle with A inside is the symbol for a junction. (a) True (b) False
25. 25.True or false: a circle with V inside is the symbol for a battery. (a) False (b) True
26. 26.True or false: a straight line is the symbol for a wire. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) capacitor (c) ammeter (d) diode
28. 28.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) straight lines (d) little stars
29. 29.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) switch (b) resistor (c) wire (d) junction
30. 30.True or false: triangle against a bar is the symbol for a bulb. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) diode (b) cell (c) junction (d) resistor
32. 32.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) LED (b) resistor (c) switch (d) junction
33. 33.Which drawing is the symbol for a resistor? (a) triangle against a bar (b) a dot where wires meet (c) two or more cell symbols (d) a plain rectangle
34. 34.Which drawing is the symbol for a wire? (a) two or more cell symbols (b) a straight line (c) a circle with a cross (d) a dot where wires meet
35. 35.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
36. 36.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a long and a short line (c) a circle with an X in it (d) a dot where wires meet
37. 37.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a circle with A inside (c) a circle with a cross (d) two equal parallel lines
38. 38.True or false: a long and a short line is the symbol for an LED. (a) True (b) False
39. 39.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) voltmeter (c) junction (d) cell

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