Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 670 · 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 dot where wires meet? (a) junction (b) voltmeter (c) capacitor (d) switch
2. 2.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) one tall, one short bar (c) a circle with A inside (d) triangle, bar and arrows
3. 3.True or false: a circle with an X in it is the symbol for a wire. (a) False (b) True
4. 4.Which drawing is the symbol for a diode? (a) two equal parallel lines (b) a small empty box (c) many long-short pairs (d) triangle against a bar
5. 5.Which drawing is the symbol for a wire? (a) triangle against a bar (b) a straight line (c) many long-short pairs (d) a long and a short line
6. 6.Which drawing is the symbol for a switch? (a) a plain rectangle (b) a circle with V inside (c) a circle with a cross (d) a line lifted at a gap
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) switch (c) LED (d) capacitor
8. 8.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
9. 9.Which drawing is the symbol for a voltmeter? (a) a plain rectangle (b) a circle with V inside (c) one tall, one short bar (d) a circle with M inside
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) battery (c) ammeter (d) voltmeter
11. 11.Which drawing is the symbol for an LED? (a) a plain rectangle (b) one tall, one short bar (c) triangle, bar and arrows (d) a circle with a cross
12. 12.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) bulb (c) ammeter (d) LED
14. 14.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) wavy lines (d) little stars
15. 15.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) symbols are heavier (d) to hide the circuit
16. 16.Which drawing is the symbol for a junction? (a) a circle with a cross (b) a long and a short line (c) two equal parallel lines (d) a dot where wires meet
17. 17.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) the longer line (d) both lines
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) motor (c) capacitor (d) junction
19. 19.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
20. 20.Which drawing is the symbol for a motor? (a) triangle against a bar (b) a straight line (c) a dot where wires meet (d) a circle with M inside
21. 21.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) a circle with a cross (c) two or more cell symbols (d) a circle with M inside
22. 22.True or false: one tall, one short bar is the symbol for a motor. (a) True (b) False
23. 23.Which drawing is the symbol for a battery? (a) a circle with a cross (b) two or more cell symbols (c) a long and a short line (d) a straight line
24. 24.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) two equal parallel lines (c) a long and a short line (d) a circle with M inside
25. 25.Which drawing is the symbol for a battery? (a) triangle, bar and arrows (b) a line lifted at a gap (c) many long-short pairs (d) a circle with an X in it
26. 26.Which drawing is the symbol for an ammeter? (a) one tall, one short bar (b) a circle with an X in it (c) a circle with V inside (d) a circle with A inside
27. 27.True or false: a circle with V inside is the symbol for an ammeter. (a) False (b) True
28. 28.True or false: a straight line is the symbol for a wire. (a) True (b) False
29. 29.True or false: many long-short pairs is the symbol for a wire. (a) True (b) False
30. 30.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) junction (c) wire (d) switch
31. 31.True or false: two or more cell symbols is the symbol for a switch. (a) False (b) True
32. 32.True or false: one tall, one short bar is the symbol for a resistor. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) ammeter (c) battery (d) wire
34. 34.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) LED (c) wire (d) capacitor
35. 35.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) wire (c) switch (d) ammeter
36. 36.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) cell (c) LED (d) battery
38. 38.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
39. 39.True or false: a plain rectangle is the symbol for a cell. (a) False (b) True
40. 40.Which drawing is the symbol for a capacitor? (a) a small empty box (b) a long and a short line (c) two equal parallel lines (d) a dot where wires meet

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