Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 747 · 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 cell? (a) a line lifted at a gap (b) many long-short pairs (c) a straight line (d) a long and a short line
2. 2.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) voltmeter (c) battery (d) bulb
3. 3.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
4. 4.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
5. 5.Which drawing is the symbol for a battery? (a) a plain rectangle (b) a circle with a cross (c) two or more cell symbols (d) a circle with A inside
6. 6.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) triangle against a bar (c) a circle with V inside (d) a line lifted at a gap
7. 7.True or false: a circle with M inside is the symbol for a battery. (a) True (b) False
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) bulb (c) wire (d) battery
9. 9.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) wire (b) battery (c) switch (d) LED
10. 10.Which drawing is the symbol for a motor? (a) a straight line (b) a circle with M inside (c) triangle, bar and arrows (d) a dot where wires meet
11. 11.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with M inside (c) one tall, one short bar (d) two or more cell symbols
12. 12.True or false: a line lifted at a gap is the symbol for an ammeter. (a) True (b) False
13. 13.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
14. 14.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) voltmeter (c) cell (d) wire
15. 15.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
16. 16.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) motor (b) wire (c) cell (d) diode
17. 17.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) switch (c) diode (d) capacitor
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) ammeter (c) switch (d) wire
19. 19.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) a circle with V inside (c) a long and a short line (d) a circle with an X in it
20. 20.Which drawing is the symbol for a resistor? (a) triangle against a bar (b) a circle with a cross (c) a circle with V inside (d) a plain rectangle
21. 21.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a circle with A inside (c) triangle, bar and arrows (d) two equal parallel lines
22. 22.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) battery (c) LED (d) capacitor
23. 23.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) ammeter (b) motor (c) capacitor (d) junction
24. 24.Which drawing is the symbol for a wire? (a) a long and a short line (b) triangle against a bar (c) a straight line (d) a circle with M inside
25. 25.Which drawing is the symbol for a diode? (a) many long-short pairs (b) two or more cell symbols (c) triangle against a bar (d) a small empty box
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) LED (c) cell (d) voltmeter
27. 27.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) diode (c) motor (d) junction
28. 28.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) a small empty box (c) a dot where wires meet (d) a circle with an X in it
29. 29.Which drawing is the symbol for a voltmeter? (a) triangle, bar and arrows (b) a circle with a cross (c) a circle with V inside (d) a circle with A inside
30. 30.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
31. 31.True or false: a circle with a cross is the symbol for a diode. (a) True (b) False
32. 32.True or false: two equal parallel lines is the symbol for a switch. (a) True (b) False
33. 33.True or false: a circle with M inside is the symbol for a bulb. (a) False (b) True
34. 34.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a line lifted at a gap (c) a circle with an X in it (d) one tall, one short bar
35. 35.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
36. 36.True or false: triangle against a bar is the symbol for a junction. (a) False (b) True
37. 37.True or false: a circle with a cross is the symbol for an ammeter. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) resistor (c) diode (d) bulb
39. 39.True or false: a circle with V inside is the symbol for a junction. (a) True (b) False
40. 40.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) to make it colourful (d) symbols are heavier

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