Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 256 · 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 a battery? (a) two or more cell symbols (b) a straight line (c) a long and a short line (d) a dot where wires meet
2. 2.Which drawing is the symbol for a motor? (a) many long-short pairs (b) two equal parallel lines (c) triangle against a bar (d) a circle with M inside
3. 3.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
4. 4.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) resistor (b) ammeter (c) diode (d) junction
5. 5.Which drawing is the symbol for a capacitor? (a) a long and a short line (b) a circle with an X in it (c) two equal parallel lines (d) a small empty box
6. 6.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
7. 7.True or false: a small empty box is the symbol for a bulb. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) junction (c) voltmeter (d) resistor
9. 9.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) motor (b) switch (c) capacitor (d) cell
10. 10.✏️ 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
11. 11.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) resistor (c) capacitor (d) voltmeter
12. 12.Which drawing is the symbol for a diode? (a) a plain rectangle (b) triangle against a bar (c) a small empty box (d) many long-short pairs
13. 13.Which drawing is the symbol for a resistor? (a) a straight line (b) triangle against a bar (c) a small empty box (d) a circle with a cross
14. 14.Which drawing is the symbol for a wire? (a) a straight line (b) triangle, bar and arrows (c) a line lifted at a gap (d) a circle with M inside
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) junction (b) motor (c) ammeter (d) resistor
16. 16.True or false: a long and a short line is the symbol for a switch. (a) True (b) False
17. 17.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) motor (c) cell (d) diode
18. 18.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
19. 19.True or false: two equal parallel lines is the symbol for a voltmeter. (a) True (b) False
20. 20.True or false: a plain rectangle is the symbol for a motor. (a) True (b) False
21. 21.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) dotted circles (d) little stars
22. 22.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
23. 23.True or false: a straight line is the symbol for a battery. (a) True (b) False
24. 24.True or false: triangle, bar and arrows is the symbol for a motor. (a) True (b) False
25. 25.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) cell (c) ammeter (d) diode
26. 26.True or false: a small empty box is the symbol for a battery. (a) False (b) True
27. 27.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
28. 28.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
29. 29.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
30. 30.True or false: a straight line is the symbol for a wire. (a) True (b) False
31. 31.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) a circle with a cross (c) a circle with V inside (d) a plain rectangle
32. 32.Which drawing is the symbol for an ammeter? (a) a circle with V inside (b) many long-short pairs (c) triangle, bar and arrows (d) a circle with A inside
33. 33.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) voltmeter (b) switch (c) battery (d) diode
34. 34.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) switch (c) wire (d) cell
35. 35.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) capacitor (b) ammeter (c) voltmeter (d) LED
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) ammeter (b) junction (c) diode (d) voltmeter
37. 37.True or false: a circle with M inside is the symbol for a resistor. (a) True (b) False
38. 38.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
39. 39.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) one tall, one short bar (c) many long-short pairs (d) a dot where wires meet
40. 40.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) a dot where wires meet (c) triangle, bar and arrows (d) a plain rectangle

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