Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 994 · 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.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to hide the circuit (d) to make it colourful
2. 2.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) triangle, bar and arrows (c) a line lifted at a gap (d) a long and a short line
3. 3.True or false: a straight line is the symbol for a wire. (a) True (b) False
4. 4.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
5. 5.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) LED (c) diode (d) resistor
6. 6.Which drawing is the symbol for a capacitor? (a) a circle with M inside (b) a circle with a cross (c) two equal parallel lines (d) a straight line
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) switch (c) battery (d) ammeter
8. 8.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) one tall, one short bar (c) two equal parallel lines (d) a circle with A inside
9. 9.Which drawing is the symbol for a diode? (a) a circle with a cross (b) triangle against a bar (c) many long-short pairs (d) triangle, bar and arrows
10. 10.True or false: a plain rectangle is the symbol for a voltmeter. (a) True (b) False
11. 11.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
12. 12.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) resistor (c) cell (d) switch
13. 13.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) wire (c) bulb (d) diode
14. 14.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) a long and a short line (c) a straight line (d) triangle, bar and arrows
15. 15.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
16. 16.Which drawing is the symbol for a cell? (a) a plain rectangle (b) two equal parallel lines (c) a long and a short line (d) a circle with V inside
17. 17.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) junction (c) diode (d) wire
18. 18.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) the shorter line (d) neither line
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) wire (c) junction (d) cell
20. 20.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) LED (c) ammeter (d) wire
22. 22.Which drawing is the symbol for a voltmeter? (a) a circle with a cross (b) a circle with V inside (c) a circle with an X in it (d) a line lifted at a gap
23. 23.True or false: a small empty box is the symbol for a wire. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) capacitor (b) battery (c) resistor (d) switch
25. 25.Which drawing is the symbol for a wire? (a) a circle with a cross (b) one tall, one short bar (c) a straight line (d) two equal parallel lines
26. 26.Which drawing is the symbol for an ammeter? (a) two or more cell symbols (b) a circle with a cross (c) many long-short pairs (d) a circle with A inside
27. 27.Which drawing is the symbol for a switch? (a) a circle with an X in it (b) a line lifted at a gap (c) one tall, one short bar (d) two or more cell symbols
28. 28.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
29. 29.True or false: two equal parallel lines is the symbol for a motor. (a) False (b) True
30. 30.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
31. 31.True or false: a circle with A inside is the symbol for a cell. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) LED (c) cell (d) voltmeter
33. 33.True or false: one tall, one short bar is the symbol for a wire. (a) True (b) False
34. 34.True or false: two equal parallel lines is the symbol for a cell. (a) True (b) False
35. 35.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) ammeter (c) switch (d) battery
37. 37.True or false: a circle with M inside is the symbol for a bulb. (a) True (b) False
38. 38.True or false: a line lifted at a gap is the symbol for an LED. (a) True (b) False
39. 39.Which drawing is the symbol for a motor? (a) a circle with a cross (b) a circle with A inside (c) many long-short pairs (d) a circle with M inside
40. 40.True or false: a small empty box is the symbol for a voltmeter. (a) False (b) True

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