Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 912 · 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 capacitor? (a) two equal parallel lines (b) a line lifted at a gap (c) a long and a short line (d) a circle with M inside
2. 2.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) cell (c) capacitor (d) bulb
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
4. 4.Which drawing is the symbol for a battery? (a) a circle with A inside (b) many long-short pairs (c) a straight line (d) a line lifted at a gap
5. 5.True or false: a circle with a cross is the symbol for an ammeter. (a) False (b) True
6. 6.✏️ 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
7. 7.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) diode (c) junction (d) battery
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) motor (b) ammeter (c) switch (d) voltmeter
9. 9.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) switch (b) battery (c) bulb (d) cell
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) the shorter line (d) neither line
11. 11.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
12. 12.True or false: many long-short pairs is the symbol for a bulb. (a) False (b) True
13. 13.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) bulb (c) motor (d) switch
14. 14.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) bulb (b) resistor (c) cell (d) battery
15. 15.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a dot where wires meet (c) many long-short pairs (d) triangle, bar and arrows
16. 16.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
17. 17.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
18. 18.Which drawing is the symbol for a resistor? (a) a line lifted at a gap (b) a circle with A inside (c) a circle with V inside (d) a small empty box
19. 19.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) triangle against a bar (c) a circle with an X in it (d) a straight line
20. 20.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
21. 21.✏️ In a circuit diagram, which part is drawn as a straight line? (a) diode (b) wire (c) capacitor (d) battery
22. 22.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
23. 23.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) wire (b) resistor (c) switch (d) bulb
25. 25.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) switch (c) capacitor (d) resistor
26. 26.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a straight line (c) one tall, one short bar (d) a circle with A inside
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) voltmeter (c) capacitor (d) wire
28. 28.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) triangle, bar and arrows (c) a circle with a cross (d) two or more cell symbols
29. 29.True or false: a dot where wires meet is the symbol for a switch. (a) True (b) False
30. 30.True or false: a circle with V inside is the symbol for a motor. (a) True (b) False
31. 31.Which drawing is the symbol for a wire? (a) a circle with M inside (b) a straight line (c) a circle with a cross (d) many long-short pairs
32. 32.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
33. 33.True or false: a small empty box is the symbol for a battery. (a) False (b) True
34. 34.Which drawing is the symbol for a switch? (a) many long-short pairs (b) a line lifted at a gap (c) a circle with an X in it (d) a circle with a cross
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) LED (b) voltmeter (c) bulb (d) ammeter
36. 36.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) triangle against a bar (c) a plain rectangle (d) one tall, one short bar
37. 37.True or false: a long and a short line is the symbol for a battery. (a) True (b) False
38. 38.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a circle with a cross (c) a circle with A inside (d) triangle against a bar
39. 39.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) capacitor (b) battery (c) motor (d) resistor
40. 40.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) motor (b) wire (c) LED (d) cell

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