Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 758 · 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.True or false: a dot where wires meet is the symbol for a battery. (a) True (b) False
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) LED (c) wire (d) bulb
3. 3.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
4. 4.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
5. 5.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
6. 6.Which drawing is the symbol for a junction? (a) two or more cell symbols (b) a dot where wires meet (c) two equal parallel lines (d) a circle with a cross
7. 7.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to make it colourful (d) to hide the circuit
8. 8.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
9. 9.True or false: a straight line is the symbol for a motor. (a) False (b) True
10. 10.Which drawing is the symbol for a voltmeter? (a) a small empty box (b) a circle with A inside (c) one tall, one short bar (d) a circle with V inside
11. 11.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a long and a short line (c) two equal parallel lines (d) many long-short pairs
12. 12.True or false: one tall, one short bar is the symbol for a resistor. (a) True (b) False
13. 13.True or false: a circle with an X in it is the symbol for a battery. (a) True (b) False
14. 14.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
15. 15.Which drawing is the symbol for a switch? (a) a long and a short line (b) a straight line (c) a circle with an X in it (d) a line lifted at a gap
16. 16.✏️ In a circuit diagram, which part is drawn as a straight line? (a) junction (b) diode (c) battery (d) wire
17. 17.True or false: a line lifted at a gap is the symbol for a diode. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) motor (b) junction (c) resistor (d) switch
19. 19.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) wire (b) cell (c) bulb (d) switch
20. 20.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) a straight line (c) a small empty box (d) a circle with an X in it
21. 21.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
22. 22.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) junction (c) wire (d) voltmeter
24. 24.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) capacitor (c) battery (d) resistor
25. 25.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
26. 26.Which drawing is the symbol for a capacitor? (a) two or more cell symbols (b) one tall, one short bar (c) two equal parallel lines (d) triangle against a bar
27. 27.True or false: a dot where wires meet is the symbol for a cell. (a) True (b) False
28. 28.True or false: a small empty box is the symbol for a switch. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) voltmeter (c) motor (d) diode
30. 30.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a line lifted at a gap (c) triangle against a bar (d) a circle with V inside
31. 31.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) diode (b) switch (c) LED (d) junction
32. 32.True or false: triangle, bar and arrows is the symbol for an ammeter. (a) True (b) False
33. 33.Which drawing is the symbol for a diode? (a) triangle, bar and arrows (b) triangle against a bar (c) many long-short pairs (d) a circle with a cross
34. 34.True or false: two equal parallel lines is the symbol for a bulb. (a) False (b) True
35. 35.True or false: two or more cell symbols is the symbol for an ammeter. (a) True (b) False
36. 36.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with M inside (c) a circle with V inside (d) triangle, bar and arrows
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) motor (b) cell (c) switch (d) voltmeter
38. 38.True or false: many long-short pairs is the symbol for an ammeter. (a) False (b) True
39. 39.True or false: many long-short pairs is the symbol for a wire. (a) True (b) False
40. 40.Which drawing is the symbol for a wire? (a) a small empty box (b) a straight line (c) a line lifted at a gap (d) a circle with M inside

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