Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 661 · 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.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) battery (c) switch (d) capacitor
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) LED (b) junction (c) bulb (d) voltmeter
3. 3.True or false: a straight line is the symbol for a resistor. (a) True (b) False
4. 4.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
5. 5.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) symbols are heavier (d) quick and clear for all
6. 6.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) capacitor (c) motor (d) battery
7. 7.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) a circle with a cross (c) many long-short pairs (d) two or more cell symbols
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) resistor (c) bulb (d) cell
9. 9.Which drawing is the symbol for a switch? (a) a circle with an X in it (b) a circle with M inside (c) a straight line (d) a line lifted at a gap
10. 10.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) capacitor (c) resistor (d) LED
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 two or more cell symbols? (a) junction (b) ammeter (c) LED (d) battery
13. 13.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) motor (b) resistor (c) switch (d) capacitor
14. 14.Which drawing is the symbol for a voltmeter? (a) a line lifted at a gap (b) a straight line (c) a circle with an X in it (d) a circle with V inside
15. 15.Which drawing is the symbol for a battery? (a) a circle with A inside (b) a plain rectangle (c) two or more cell symbols (d) triangle, bar and arrows
16. 16.True or false: a circle with an X in it is the symbol for a capacitor. (a) False (b) True
17. 17.Which drawing is the symbol for a capacitor? (a) a long and a short line (b) a circle with a cross (c) a circle with V inside (d) two equal parallel lines
18. 18.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
19. 19.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) little stars (c) dotted circles (d) wavy lines
20. 20.Which drawing is the symbol for a cell? (a) a line lifted at a gap (b) two or more cell symbols (c) a dot where wires meet (d) a long and a short line
21. 21.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
22. 22.True or false: a line lifted at a gap is the symbol for a junction. (a) True (b) False
23. 23.True or false: two equal parallel lines is the symbol for a junction. (a) False (b) True
24. 24.Which drawing is the symbol for an ammeter? (a) triangle, bar and arrows (b) a small empty box (c) triangle against a bar (d) a circle with A inside
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) bulb (c) cell (d) capacitor
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) capacitor (c) ammeter (d) battery
27. 27.True or false: a circle with M inside is the symbol for a cell. (a) False (b) True
28. 28.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) LED (b) battery (c) switch (d) diode
29. 29.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) resistor (c) LED (d) cell
30. 30.True or false: a circle with A inside is the symbol for a capacitor. (a) False (b) True
31. 31.Which drawing is the symbol for a motor? (a) a circle with V inside (b) many long-short pairs (c) a circle with M inside (d) a circle with an X in it
32. 32.✏️ In a circuit diagram, which part is drawn as a straight line? (a) junction (b) resistor (c) LED (d) wire
33. 33.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) wire (b) motor (c) capacitor (d) voltmeter
34. 34.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
35. 35.True or false: many long-short pairs is the symbol for a switch. (a) False (b) True
36. 36.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) two or more cell symbols (c) a circle with V inside (d) a straight line
37. 37.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
38. 38.Which drawing is the symbol for a resistor? (a) a small empty box (b) triangle, bar and arrows (c) a line lifted at a gap (d) a straight line
39. 39.True or false: triangle, bar and arrows is the symbol for a cell. (a) False (b) True
40. 40.Which drawing is the symbol for an LED? (a) a small empty box (b) triangle, bar and arrows (c) two or more cell symbols (d) a circle with A inside

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