Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 684 · 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 cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) the shorter line (d) neither line
2. 2.True or false: a straight line is the symbol for an ammeter. (a) False (b) True
3. 3.Which drawing is the symbol for an ammeter? (a) a plain rectangle (b) a circle with a cross (c) a small empty box (d) a circle with A inside
4. 4.Which drawing is the symbol for a capacitor? (a) triangle, bar and arrows (b) a circle with a cross (c) two equal parallel lines (d) a circle with an X in it
5. 5.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) wire (c) capacitor (d) LED
7. 7.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
8. 8.Which drawing is the symbol for a motor? (a) a circle with a cross (b) a circle with M inside (c) one tall, one short bar (d) a long and a short line
9. 9.True or false: a line lifted at a gap is the symbol for a resistor. (a) False (b) True
10. 10.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) quick and clear for all (d) to make it colourful
11. 11.True or false: a small empty box is the symbol for a bulb. (a) False (b) True
12. 12.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) resistor (c) diode (d) junction
13. 13.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) diode (b) battery (c) switch (d) junction
14. 14.True or false: two or more cell symbols is the symbol for a switch. (a) True (b) False
15. 15.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) LED (b) switch (c) bulb (d) diode
16. 16.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
17. 17.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) capacitor (c) motor (d) bulb
18. 18.True or false: a circle with an X in it is the symbol for a battery. (a) True (b) False
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) LED (b) cell (c) ammeter (d) bulb
20. 20.True or false: a circle with A inside is the symbol for a capacitor. (a) False (b) True
21. 21.True or false: two or more cell symbols is the symbol for an ammeter. (a) False (b) True
22. 22.Which drawing is the symbol for a resistor? (a) triangle, bar and arrows (b) a plain rectangle (c) a circle with M inside (d) many long-short pairs
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) junction (b) motor (c) ammeter (d) bulb
24. 24.Which drawing is the symbol for a voltmeter? (a) a plain rectangle (b) two or more cell symbols (c) a dot where wires meet (d) a circle with V inside
25. 25.Which drawing is the symbol for a wire? (a) triangle, bar and arrows (b) a straight line (c) two equal parallel lines (d) one tall, one short bar
26. 26.✏️ In a circuit diagram, which part is drawn as a straight line? (a) diode (b) ammeter (c) switch (d) wire
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) capacitor (c) ammeter (d) LED
28. 28.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) capacitor (b) bulb (c) resistor (d) cell
29. 29.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a line lifted at a gap (c) one tall, one short bar (d) a circle with a cross
30. 30.Which drawing is the symbol for a switch? (a) two equal parallel lines (b) a long and a short line (c) a circle with an X in it (d) a line lifted at a gap
31. 31.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
32. 32.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
33. 33.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a long and a short line (c) many long-short pairs (d) a circle with an X in it
34. 34.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a circle with V inside (c) a circle with A inside (d) a dot where wires meet
35. 35.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) battery (c) switch (d) LED
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) diode (c) junction (d) voltmeter
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 an LED? (a) a plain rectangle (b) triangle, bar and arrows (c) two equal parallel lines (d) a small empty box
39. 39.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
40. 40.True or false: a plain rectangle is the symbol for a battery. (a) False (b) True

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