Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 49 · 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) dotted circles (b) straight lines (c) wavy lines (d) little stars
2. 2.Which drawing is the symbol for a junction? (a) one tall, one short bar (b) a dot where wires meet (c) a circle with a cross (d) two equal parallel lines
3. 3.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
4. 4.True or false: triangle against a bar is the symbol for a bulb. (a) False (b) True
5. 5.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the shorter line (d) the longer line
6. 6.Which drawing is the symbol for an ammeter? (a) a plain rectangle (b) a circle with V inside (c) a circle with A inside (d) a circle with M inside
7. 7.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) voltmeter (b) battery (c) switch (d) bulb
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) ammeter (b) LED (c) bulb (d) junction
9. 9.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) switch (b) ammeter (c) voltmeter (d) cell
11. 11.True or false: two equal parallel lines is the symbol for an ammeter. (a) True (b) False
12. 12.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
13. 13.Which drawing is the symbol for a diode? (a) a long and a short line (b) two or more cell symbols (c) a circle with a cross (d) triangle against a bar
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) junction (b) motor (c) ammeter (d) bulb
15. 15.True or false: one tall, one short bar is the symbol for a diode. (a) True (b) False
16. 16.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) LED (c) battery (d) resistor
17. 17.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a straight line (c) one tall, one short bar (d) a small empty box
18. 18.Which drawing is the symbol for a capacitor? (a) a circle with A inside (b) a dot where wires meet (c) two equal parallel lines (d) triangle against a bar
19. 19.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) quick and clear for all (d) symbols are heavier
20. 20.Which drawing is the symbol for a voltmeter? (a) a dot where wires meet (b) a circle with V inside (c) many long-short pairs (d) a long and a short line
21. 21.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) two equal parallel lines (c) a straight line (d) a circle with a cross
22. 22.True or false: a circle with M inside is the symbol for a junction. (a) True (b) False
23. 23.Which drawing is the symbol for a wire? (a) two equal parallel lines (b) many long-short pairs (c) a small empty box (d) a straight line
24. 24.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) diode (b) cell (c) capacitor (d) resistor
25. 25.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) many long-short pairs (c) a circle with a cross (d) a long and a short line
26. 26.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
27. 27.Which drawing is the symbol for a switch? (a) many long-short pairs (b) a circle with a cross (c) a line lifted at a gap (d) one tall, one short bar
28. 28.True or false: triangle, bar and arrows is the symbol for a diode. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) LED (c) diode (d) wire
30. 30.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) junction (b) LED (c) battery (d) capacitor
31. 31.True or false: a straight line is the symbol for an LED. (a) False (b) True
32. 32.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) a circle with A inside (c) two or more cell symbols (d) two equal parallel lines
33. 33.True or false: a line lifted at a gap is the symbol for a battery. (a) False (b) True
34. 34.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) two equal parallel lines (c) many long-short pairs (d) a plain rectangle
35. 35.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) wire (b) motor (c) capacitor (d) battery
37. 37.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) LED (b) motor (c) bulb (d) resistor
38. 38.Which drawing is the symbol for a resistor? (a) triangle, bar and arrows (b) a plain rectangle (c) a circle with a cross (d) a circle with V inside
39. 39.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) ammeter (b) voltmeter (c) diode (d) junction
40. 40.True or false: one tall, one short bar is the symbol for a junction. (a) True (b) False

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