Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 252 · 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) triangle, bar and arrows (b) a circle with A inside (c) a long and a short line (d) many long-short pairs
2. 2.Which drawing is the symbol for a switch? (a) two equal parallel lines (b) a circle with V inside (c) a line lifted at a gap (d) a plain rectangle
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
4. 4.True or false: triangle against a bar is the symbol for a cell. (a) True (b) False
5. 5.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) battery (c) voltmeter (d) wire
7. 7.Which drawing is the symbol for a diode? (a) a long and a short line (b) triangle, bar and arrows (c) a plain rectangle (d) triangle against a bar
8. 8.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) diode (c) bulb (d) LED
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) wire (c) ammeter (d) cell
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) capacitor (b) switch (c) diode (d) motor
11. 11.Which drawing is the symbol for a bulb? (a) a long and a short line (b) a circle with a cross (c) two or more cell symbols (d) triangle, bar and arrows
12. 12.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) neither line (d) both lines
13. 13.Which drawing is the symbol for a motor? (a) a circle with V inside (b) a circle with M inside (c) triangle against a bar (d) a small empty box
14. 14.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) diode (b) wire (c) battery (d) resistor
15. 15.Which drawing is the symbol for a cell? (a) a circle with a cross (b) a circle with an X in it (c) two or more cell symbols (d) one tall, one short bar
16. 16.True or false: a line lifted at a gap is the symbol for a diode. (a) False (b) True
17. 17.True or false: a small empty box is the symbol for a battery. (a) True (b) False
18. 18.True or false: a line lifted at a gap is the symbol for a battery. (a) True (b) False
19. 19.Which drawing is the symbol for a wire? (a) a circle with a cross (b) a circle with A inside (c) a straight line (d) a small empty box
20. 20.✏️ 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
21. 21.True or false: two equal parallel lines is the symbol for a voltmeter. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) LED (b) voltmeter (c) motor (d) diode
23. 23.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
24. 24.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a circle with a cross (c) one tall, one short bar (d) many long-short pairs
25. 25.True or false: triangle against a bar is the symbol for a battery. (a) False (b) True
26. 26.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
27. 27.True or false: a circle with a cross is the symbol for a battery. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) capacitor (b) junction (c) bulb (d) LED
29. 29.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a straight line (c) many long-short pairs (d) a line lifted at a gap
30. 30.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) battery (c) diode (d) junction
32. 32.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) battery (c) capacitor (d) junction
33. 33.True or false: a plain rectangle is the symbol for a bulb. (a) True (b) False
34. 34.Which drawing is the symbol for a junction? (a) a circle with an X in it (b) a dot where wires meet (c) a circle with V inside (d) many long-short pairs
35. 35.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) two equal parallel lines (c) a small empty box (d) a dot where wires meet
36. 36.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) ammeter (b) capacitor (c) voltmeter (d) battery
37. 37.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) capacitor (c) cell (d) junction
39. 39.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
40. 40.True or false: a circle with V inside is the symbol for a wire. (a) False (b) True

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