Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 827 · 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.Which drawing is the symbol for an ammeter? (a) triangle against a bar (b) one tall, one short bar (c) a circle with A inside (d) two equal parallel lines
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) junction (b) ammeter (c) resistor (d) bulb
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) the shorter line (d) both lines
5. 5.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) to hide the circuit (d) symbols are heavier
6. 6.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a straight line (c) a plain rectangle (d) a circle with V inside
7. 7.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
8. 8.Which drawing is the symbol for a motor? (a) one tall, one short bar (b) a circle with M inside (c) a circle with A inside (d) triangle against a bar
9. 9.True or false: a circle with a cross is the symbol for an ammeter. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) battery (b) wire (c) resistor (d) motor
11. 11.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) motor (b) battery (c) voltmeter (d) cell
12. 12.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) diode (c) LED (d) ammeter
13. 13.True or false: a straight line is the symbol for a wire. (a) True (b) False
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) resistor (b) motor (c) battery (d) bulb
15. 15.Which drawing is the symbol for a junction? (a) one tall, one short bar (b) a circle with a cross (c) a line lifted at a gap (d) a dot where wires meet
16. 16.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) LED (c) switch (d) resistor
17. 17.True or false: a small empty box is the symbol for a cell. (a) True (b) False
18. 18.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) junction (c) wire (d) motor
19. 19.Which drawing is the symbol for a resistor? (a) a small empty box (b) a circle with a cross (c) one tall, one short bar (d) a straight line
20. 20.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
21. 21.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
22. 22.Which drawing is the symbol for a capacitor? (a) a circle with a cross (b) two equal parallel lines (c) a circle with A inside (d) triangle, bar and arrows
23. 23.Which drawing is the symbol for a wire? (a) a line lifted at a gap (b) a dot where wires meet (c) a straight line (d) a circle with A inside
24. 24.True or false: triangle, bar and arrows is the symbol for a battery. (a) False (b) True
25. 25.True or false: two or more cell symbols is the symbol for a wire. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) battery (b) junction (c) resistor (d) diode
27. 27.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) capacitor (c) resistor (d) LED
28. 28.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) capacitor (c) motor (d) junction
29. 29.True or false: a circle with A inside is the symbol for a cell. (a) True (b) False
30. 30.Which drawing is the symbol for a diode? (a) one tall, one short bar (b) a dot where wires meet (c) many long-short pairs (d) triangle against a bar
31. 31.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) a circle with a cross (c) a straight line (d) two or more cell symbols
32. 32.True or false: two or more cell symbols is the symbol for a voltmeter. (a) False (b) True
33. 33.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) junction (b) wire (c) voltmeter (d) resistor
35. 35.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) wire (c) junction (d) bulb
37. 37.True or false: triangle, bar and arrows is the symbol for a wire. (a) True (b) False
38. 38.True or false: many long-short pairs is the symbol for a bulb. (a) False (b) True
39. 39.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) voltmeter (c) diode (d) capacitor
40. 40.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True

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