Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 735 · 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: one tall, one short bar is the symbol for a resistor. (a) True (b) False
2. 2.True or false: many long-short pairs is the symbol for a junction. (a) False (b) True
3. 3.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a line lifted at a gap (c) a circle with an X in it (d) triangle, bar and arrows
4. 4.Which drawing is the symbol for a diode? (a) a small empty box (b) a straight line (c) two or more cell symbols (d) triangle against a bar
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) diode (b) resistor (c) LED (d) motor
6. 6.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) capacitor (c) LED (d) wire
7. 7.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
8. 8.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
9. 9.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) wire (b) LED (c) voltmeter (d) cell
10. 10.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a line lifted at a gap (c) two equal parallel lines (d) a long and a short line
11. 11.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) ammeter (c) capacitor (d) cell
12. 12.True or false: a circle with an X in it is the symbol for a motor. (a) True (b) False
13. 13.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a long and a short line (c) a straight line (d) one tall, one short bar
14. 14.Which drawing is the symbol for a motor? (a) a small empty box (b) a dot where wires meet (c) a circle with M inside (d) one tall, one short bar
15. 15.True or false: a circle with an X in it is the symbol for an LED. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) motor (c) capacitor (d) cell
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) diode (b) switch (c) wire (d) voltmeter
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) motor (b) resistor (c) ammeter (d) bulb
19. 19.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
20. 20.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to hide the circuit (d) to make it colourful
21. 21.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) motor (b) switch (c) resistor (d) bulb
22. 22.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
23. 23.True or false: one tall, one short bar is the symbol for an ammeter. (a) False (b) True
24. 24.True or false: two or more cell symbols is the symbol for a wire. (a) True (b) False
25. 25.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) many long-short pairs (c) a circle with a cross (d) a long and a short line
26. 26.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
27. 27.True or false: two or more cell symbols is the symbol for a resistor. (a) False (b) True
28. 28.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) wire (c) switch (d) bulb
29. 29.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) little stars (d) wavy lines
30. 30.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) triangle against a bar (c) a circle with an X in it (d) two equal parallel lines
31. 31.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with A inside (c) a plain rectangle (d) a circle with an X in it
32. 32.True or false: a plain rectangle is the symbol for a junction. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) voltmeter (b) motor (c) battery (d) LED
34. 34.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
35. 35.Which drawing is the symbol for an LED? (a) a dot where wires meet (b) triangle, bar and arrows (c) triangle against a bar (d) many long-short pairs
36. 36.Which drawing is the symbol for a wire? (a) a long and a short line (b) a circle with M inside (c) many long-short pairs (d) a straight line
37. 37.True or false: a small empty box is the symbol for a cell. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) diode (c) battery (d) capacitor
39. 39.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
40. 40.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) a circle with M inside (c) a circle with a cross (d) a circle with A inside

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