Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 297 · 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.Which drawing is the symbol for a wire? (a) one tall, one short bar (b) triangle against a bar (c) two or more cell symbols (d) a straight line
2. 2.True or false: one tall, one short bar is the symbol for a battery. (a) False (b) True
3. 3.Which drawing is the symbol for a diode? (a) a dot where wires meet (b) a line lifted at a gap (c) triangle against a bar (d) triangle, bar and arrows
4. 4.Which drawing is the symbol for a motor? (a) a small empty box (b) triangle against a bar (c) a circle with a cross (d) a circle with M inside
5. 5.✏️ 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
6. 6.True or false: a circle with A inside is the symbol for a capacitor. (a) False (b) True
7. 7.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
8. 8.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) diode (c) resistor (d) cell
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) voltmeter (c) battery (d) cell
10. 10.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a line lifted at a gap (c) a circle with an X in it (d) triangle against a bar
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) LED (c) bulb (d) voltmeter
12. 12.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) battery (c) cell (d) wire
13. 13.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) straight lines (d) wavy lines
14. 14.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) one tall, one short bar (c) a circle with A inside (d) a circle with V inside
15. 15.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a line lifted at a gap (c) triangle, bar and arrows (d) triangle against a bar
16. 16.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) many long-short pairs (c) a circle with an X in it (d) a long and a short line
17. 17.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) switch (b) voltmeter (c) junction (d) resistor
18. 18.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) capacitor (b) switch (c) cell (d) bulb
20. 20.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) bulb (b) ammeter (c) resistor (d) cell
21. 21.Which drawing is the symbol for a junction? (a) a circle with M inside (b) a circle with an X in it (c) a dot where wires meet (d) many long-short pairs
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) wire (c) diode (d) bulb
23. 23.True or false: two or more cell symbols is the symbol for a junction. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) junction (c) motor (d) cell
25. 25.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as a straight line? (a) diode (b) cell (c) wire (d) LED
27. 27.True or false: one tall, one short bar is the symbol for a switch. (a) False (b) True
28. 28.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
29. 29.Which drawing is the symbol for a resistor? (a) triangle, bar and arrows (b) a small empty box (c) triangle against a bar (d) many long-short pairs
30. 30.Which drawing is the symbol for an LED? (a) a circle with V inside (b) triangle against a bar (c) a plain rectangle (d) triangle, bar and arrows
31. 31.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) bulb (c) motor (d) LED
32. 32.True or false: a circle with a cross is the symbol for a switch. (a) False (b) True
33. 33.True or false: a line lifted at a gap is the symbol for a bulb. (a) False (b) True
34. 34.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) the shorter line (d) neither line
35. 35.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) voltmeter (b) diode (c) cell (d) bulb
36. 36.True or false: a circle with V inside is the symbol for a capacitor. (a) True (b) False
37. 37.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a small empty box (c) a plain rectangle (d) a straight line
38. 38.True or false: a long and a short line is the symbol for a bulb. (a) True (b) False
39. 39.True or false: a plain rectangle is the symbol for an LED. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) motor (c) battery (d) ammeter

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