Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 647 · 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, wires are usually drawn as … (a) little stars (b) straight lines (c) wavy lines (d) dotted circles
2. 2.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) wire (c) diode (d) cell
3. 3.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
4. 4.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) battery (c) wire (d) junction
5. 5.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
6. 6.True or false: one tall, one short bar is the symbol for an ammeter. (a) True (b) False
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) bulb (c) motor (d) LED
8. 8.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) cell (c) switch (d) bulb
9. 9.True or false: two equal parallel lines is the symbol for a junction. (a) True (b) False
10. 10.True or false: many long-short pairs is the symbol for a bulb. (a) True (b) False
11. 11.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) symbols are heavier (d) to make it colourful
12. 12.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) cell (b) resistor (c) wire (d) bulb
13. 13.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) junction (c) switch (d) battery
14. 14.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) junction (c) motor (d) LED
15. 15.Which drawing is the symbol for an ammeter? (a) a line lifted at a gap (b) two equal parallel lines (c) a circle with A inside (d) a plain rectangle
16. 16.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) voltmeter (b) diode (c) resistor (d) LED
17. 17.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
18. 18.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a circle with M inside (c) one tall, one short bar (d) a line lifted at a gap
19. 19.True or false: a plain rectangle is the symbol for a bulb. (a) True (b) False
20. 20.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
21. 21.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
22. 22.True or false: a straight line is the symbol for a wire. (a) True (b) False
23. 23.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
24. 24.Which drawing is the symbol for a diode? (a) a dot where wires meet (b) a long and a short line (c) a circle with V inside (d) triangle against a bar
25. 25.True or false: a dot where wires meet is the symbol for a wire. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) motor (c) wire (d) battery
27. 27.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) triangle against a bar (c) one tall, one short bar (d) a circle with a cross
28. 28.Which drawing is the symbol for a capacitor? (a) a dot where wires meet (b) a circle with an X in it (c) two equal parallel lines (d) a straight line
29. 29.True or false: a straight line is the symbol for a voltmeter. (a) True (b) False
30. 30.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) junction (c) voltmeter (d) diode
31. 31.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
32. 32.Which drawing is the symbol for a motor? (a) a circle with A inside (b) a small empty box (c) two or more cell symbols (d) a circle with M inside
33. 33.Which drawing is the symbol for a switch? (a) triangle against a bar (b) a line lifted at a gap (c) a dot where wires meet (d) triangle, bar and arrows
34. 34.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a line lifted at a gap (c) a small empty box (d) one tall, one short bar
35. 35.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) voltmeter (b) motor (c) LED (d) switch
37. 37.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) LED (b) battery (c) switch (d) wire
38. 38.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) motor (c) cell (d) wire
39. 39.Which drawing is the symbol for a battery? (a) two equal parallel lines (b) two or more cell symbols (c) a circle with V inside (d) a plain rectangle
40. 40.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False

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