Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 412 · 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 line lifted at a gap is the symbol for a switch. (a) False (b) True
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) the longer line (d) both lines
3. 3.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) ammeter (b) motor (c) cell (d) resistor
4. 4.Which drawing is the symbol for an ammeter? (a) a circle with V inside (b) two or more cell symbols (c) a circle with A inside (d) triangle, bar and arrows
5. 5.Which drawing is the symbol for a capacitor? (a) a circle with a cross (b) a long and a short line (c) two equal parallel lines (d) triangle, bar and arrows
6. 6.Which drawing is the symbol for a diode? (a) a circle with a cross (b) triangle against a bar (c) triangle, bar and arrows (d) a circle with V inside
7. 7.Which drawing is the symbol for a motor? (a) many long-short pairs (b) a circle with M inside (c) a straight line (d) a circle with V inside
8. 8.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
9. 9.Which drawing is the symbol for a cell? (a) a long and a short line (b) triangle, bar and arrows (c) a plain rectangle (d) a circle with M inside
10. 10.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) switch (b) battery (c) motor (d) ammeter
12. 12.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) dotted circles (d) little stars
13. 13.True or false: two or more cell symbols is the symbol for a resistor. (a) True (b) False
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) bulb (c) LED (d) wire
15. 15.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) quick and clear for all (d) to make it colourful
16. 16.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) a long and a short line (c) a small empty box (d) a circle with A inside
17. 17.True or false: a plain rectangle is the symbol for an ammeter. (a) False (b) True
18. 18.Which drawing is the symbol for a voltmeter? (a) a plain rectangle (b) a circle with an X in it (c) a circle with V inside (d) a circle with A inside
19. 19.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) LED (c) bulb (d) voltmeter
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) diode (c) voltmeter (d) wire
21. 21.True or false: one tall, one short bar is the symbol for an ammeter. (a) True (b) False
22. 22.True or false: a small empty box is the symbol for an ammeter. (a) True (b) False
23. 23.True or false: a small empty box is the symbol for a switch. (a) False (b) True
24. 24.True or false: a straight line is the symbol for a switch. (a) False (b) True
25. 25.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) wire (b) diode (c) switch (d) battery
26. 26.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
27. 27.Which drawing is the symbol for a battery? (a) triangle, bar and arrows (b) triangle against a bar (c) a long and a short line (d) many long-short pairs
28. 28.True or false: a straight line is the symbol for a wire. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) resistor (b) motor (c) ammeter (d) battery
30. 30.Which drawing is the symbol for a switch? (a) a dot where wires meet (b) a line lifted at a gap (c) a long and a short line (d) a straight line
31. 31.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) battery (c) bulb (d) motor
32. 32.True or false: two or more cell symbols is the symbol for a junction. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) LED (b) battery (c) diode (d) capacitor
34. 34.Which drawing is the symbol for a cell? (a) a plain rectangle (b) two or more cell symbols (c) a circle with M inside (d) one tall, one short bar
35. 35.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
36. 36.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
37. 37.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) voltmeter (b) bulb (c) battery (d) resistor
38. 38.True or false: a circle with A inside is the symbol for a bulb. (a) True (b) False
39. 39.True or false: a long and a short line is the symbol for an LED. (a) False (b) True
40. 40.Which drawing is the symbol for a wire? (a) a dot where wires meet (b) a straight line (c) a small empty box (d) a line lifted at a gap

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