Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 928 · 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 bulb? (a) a small empty box (b) two or more cell symbols (c) triangle, bar and arrows (d) a circle with a cross
2. 2.Which drawing is the symbol for a junction? (a) one tall, one short bar (b) a plain rectangle (c) a circle with M inside (d) a dot where wires meet
3. 3.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a dot where wires meet (c) one tall, one short bar (d) a circle with M inside
4. 4.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) wire (c) battery (d) bulb
5. 5.True or false: one tall, one short bar is the symbol for an ammeter. (a) False (b) True
6. 6.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) wire (c) junction (d) cell
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
8. 8.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) switch (c) battery (d) voltmeter
9. 9.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
10. 10.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) a circle with a cross (c) a plain rectangle (d) a dot where wires meet
11. 11.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) switch (c) motor (d) junction
12. 12.True or false: a circle with M inside is the symbol for a bulb. (a) False (b) True
13. 13.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) to hide the circuit (d) quick and clear for all
14. 14.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) triangle, bar and arrows (c) a circle with an X in it (d) a straight line
15. 15.True or false: a straight line is the symbol for a wire. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) diode (c) wire (d) ammeter
17. 17.Which drawing is the symbol for a wire? (a) two or more cell symbols (b) a circle with A inside (c) a straight line (d) a circle with V inside
18. 18.Which drawing is the symbol for an ammeter? (a) triangle against a bar (b) a line lifted at a gap (c) a circle with A inside (d) two equal parallel lines
19. 19.Which drawing is the symbol for a capacitor? (a) a small empty box (b) two equal parallel lines (c) one tall, one short bar (d) a circle with M inside
20. 20.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
21. 21.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) many long-short pairs (c) a circle with A inside (d) one tall, one short bar
22. 22.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) voltmeter (b) bulb (c) switch (d) resistor
23. 23.True or false: a circle with a cross is the symbol for a battery. (a) False (b) True
24. 24.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) LED (b) diode (c) switch (d) junction
25. 25.Which drawing is the symbol for a switch? (a) a circle with A inside (b) a straight line (c) a line lifted at a gap (d) a long and a short line
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) resistor (b) switch (c) LED (d) bulb
27. 27.True or false: a circle with A inside is the symbol for a wire. (a) False (b) True
28. 28.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as a straight line? (a) junction (b) bulb (c) wire (d) ammeter
30. 30.Which drawing is the symbol for a battery? (a) a circle with V inside (b) two or more cell symbols (c) a circle with a cross (d) a circle with an X in it
31. 31.Which drawing is the symbol for a cell? (a) a circle with M inside (b) one tall, one short bar (c) two or more cell symbols (d) a small empty box
32. 32.True or false: two equal parallel lines is the symbol for an ammeter. (a) True (b) False
33. 33.True or false: a dot where wires meet is the symbol for a bulb. (a) True (b) False
34. 34.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) neither line (d) the shorter line
35. 35.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) switch (b) resistor (c) wire (d) cell
36. 36.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
37. 37.Which drawing is the symbol for a voltmeter? (a) triangle, bar and arrows (b) two or more cell symbols (c) a circle with V inside (d) many long-short pairs
38. 38.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
39. 39.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) motor (b) diode (c) cell (d) bulb
40. 40.True or false: a circle with M inside is the symbol for an LED. (a) True (b) False

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