Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 303 · 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 long and a short line is the symbol for a cell. (a) False (b) True
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
3. 3.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) to make it colourful (d) symbols are heavier
4. 4.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a circle with an X in it (c) triangle against a bar (d) a circle with V inside
5. 5.Which drawing is the symbol for a motor? (a) a circle with A inside (b) a circle with an X in it (c) a circle with M inside (d) triangle, bar and arrows
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
7. 7.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) voltmeter (c) resistor (d) switch
8. 8.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) ammeter (b) capacitor (c) diode (d) wire
9. 9.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) motor (c) junction (d) resistor
10. 10.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a straight line (c) a circle with V inside (d) two equal parallel lines
11. 11.Which drawing is the symbol for a junction? (a) a straight line (b) a plain rectangle (c) a dot where wires meet (d) triangle against a bar
12. 12.True or false: a dot where wires meet is the symbol for a battery. (a) True (b) False
13. 13.True or false: triangle against a bar is the symbol for a wire. (a) True (b) False
14. 14.True or false: a line lifted at a gap is the symbol for a battery. (a) True (b) False
15. 15.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) a circle with a cross (c) two or more cell symbols (d) triangle, bar and arrows
16. 16.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) switch (b) battery (c) diode (d) resistor
17. 17.True or false: a circle with a cross is the symbol for a battery. (a) False (b) True
18. 18.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
19. 19.Which drawing is the symbol for a switch? (a) a small empty box (b) a line lifted at a gap (c) a dot where wires meet (d) two or more cell symbols
20. 20.Which drawing is the symbol for a cell? (a) a circle with a cross (b) triangle against a bar (c) a dot where wires meet (d) a long and a short line
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) motor (c) voltmeter (d) battery
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) capacitor (b) bulb (c) voltmeter (d) battery
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) switch (b) battery (c) cell (d) voltmeter
24. 24.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) voltmeter (b) wire (c) resistor (d) battery
25. 25.Which drawing is the symbol for an LED? (a) a dot where wires meet (b) a circle with V inside (c) a circle with M inside (d) triangle, bar and arrows
26. 26.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) diode (c) cell (d) battery
27. 27.True or false: a circle with V inside is the symbol for a battery. (a) False (b) True
28. 28.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) voltmeter (c) motor (d) cell
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) switch (b) motor (c) ammeter (d) LED
30. 30.True or false: a circle with A inside is the symbol for a switch. (a) True (b) False
31. 31.True or false: two equal parallel lines is the symbol for a bulb. (a) False (b) True
32. 32.True or false: triangle against a bar is the symbol for a bulb. (a) False (b) True
33. 33.True or false: two or more cell symbols is the symbol for a diode. (a) True (b) False
34. 34.Which drawing is the symbol for a cell? (a) a circle with V inside (b) a plain rectangle (c) triangle, bar and arrows (d) one tall, one short bar
35. 35.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) a plain rectangle (c) a circle with V inside (d) triangle, bar and arrows
36. 36.Which drawing is the symbol for a battery? (a) a long and a short line (b) triangle, bar and arrows (c) many long-short pairs (d) a circle with A inside
37. 37.True or false: a small empty box is the symbol for a motor. (a) True (b) False
38. 38.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
39. 39.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) two or more cell symbols (c) a circle with an X in it (d) a line lifted at a gap
40. 40.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) bulb (c) battery (d) junction

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