Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 881 · 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 circle with M inside? (a) bulb (b) wire (c) switch (d) motor
2. 2.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) junction (b) resistor (c) cell (d) wire
3. 3.Which drawing is the symbol for a resistor? (a) a small empty box (b) a long and a short line (c) triangle against a bar (d) a straight line
4. 4.✏️ In a circuit diagram, which part is drawn as a straight line? (a) switch (b) LED (c) battery (d) wire
5. 5.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
6. 6.✏️ 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
7. 7.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) junction (c) ammeter (d) battery
8. 8.Which drawing is the symbol for a diode? (a) triangle against a bar (b) two equal parallel lines (c) a long and a short line (d) a circle with V inside
9. 9.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
10. 10.True or false: a circle with a cross is the symbol for a cell. (a) True (b) False
11. 11.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) diode (c) cell (d) voltmeter
12. 12.True or false: two or more cell symbols is the symbol for a resistor. (a) True (b) False
13. 13.Which drawing is the symbol for a junction? (a) a circle with an X in it (b) a plain rectangle (c) a circle with V inside (d) a dot where wires meet
14. 14.True or false: triangle, bar and arrows is the symbol for a wire. (a) True (b) False
15. 15.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
16. 16.Which drawing is the symbol for a switch? (a) two equal parallel lines (b) two or more cell symbols (c) a line lifted at a gap (d) a circle with V inside
17. 17.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) wire (c) LED (d) voltmeter
18. 18.Which drawing is the symbol for a battery? (a) a long and a short line (b) triangle, bar and arrows (c) many long-short pairs (d) a circle with an X in it
19. 19.Which drawing is the symbol for a voltmeter? (a) two or more cell symbols (b) a dot where wires meet (c) a circle with V inside (d) one tall, one short bar
20. 20.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) resistor (b) motor (c) LED (d) switch
21. 21.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) junction (c) switch (d) motor
22. 22.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) a circle with a cross (c) triangle, bar and arrows (d) a long and a short line
23. 23.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
24. 24.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
25. 25.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
26. 26.True or false: a circle with M inside is the symbol for a switch. (a) True (b) False
27. 27.True or false: a line lifted at a gap is the symbol for a cell. (a) True (b) False
28. 28.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) diode (c) resistor (d) voltmeter
30. 30.True or false: a straight line is the symbol for a capacitor. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) resistor (b) motor (c) wire (d) battery
32. 32.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a circle with V inside (c) a straight line (d) a plain rectangle
33. 33.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) LED (c) junction (d) wire
34. 34.Which drawing is the symbol for a motor? (a) one tall, one short bar (b) a circle with M inside (c) a circle with V inside (d) a line lifted at a gap
35. 35.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) cell (c) resistor (d) switch
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) cell (c) voltmeter (d) battery
37. 37.True or false: two or more cell symbols is the symbol for a cell. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) junction (c) voltmeter (d) capacitor
39. 39.Which drawing is the symbol for a wire? (a) a small empty box (b) a long and a short line (c) a straight line (d) a circle with A inside
40. 40.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False

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