Electronics Worksheet: Circuit Symbols

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

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