Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 844 · 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 cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
2. 2.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) many long-short pairs (c) a long and a short line (d) a small empty box
3. 3.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) a small empty box (c) many long-short pairs (d) a long and a short line
4. 4.True or false: one tall, one short bar is the symbol for an LED. (a) True (b) False
5. 5.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) resistor (c) switch (d) diode
6. 6.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) resistor (c) capacitor (d) voltmeter
7. 7.Which drawing is the symbol for a motor? (a) a long and a short line (b) a small empty box (c) a circle with M inside (d) one tall, one short bar
8. 8.True or false: a circle with an X in it is the symbol for a diode. (a) False (b) True
9. 9.True or false: a circle with V inside is the symbol for a battery. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) battery (b) diode (c) motor (d) ammeter
11. 11.True or false: triangle against a bar is the symbol for a battery. (a) False (b) True
12. 12.True or false: a line lifted at a gap is the symbol for a junction. (a) True (b) False
13. 13.Which drawing is the symbol for a wire? (a) a small empty box (b) a line lifted at a gap (c) a straight line (d) two or more cell symbols
14. 14.True or false: a small empty box is the symbol for a wire. (a) True (b) False
15. 15.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) diode (c) capacitor (d) LED
16. 16.Which drawing is the symbol for a battery? (a) a circle with a cross (b) a small empty box (c) one tall, one short bar (d) many long-short pairs
17. 17.True or false: many long-short pairs is the symbol for a voltmeter. (a) True (b) False
18. 18.Which drawing is the symbol for a resistor? (a) triangle, bar and arrows (b) a plain rectangle (c) two or more cell symbols (d) one tall, one short bar
19. 19.True or false: a long and a short line is the symbol for an ammeter. (a) True (b) False
20. 20.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) little stars (d) dotted circles
21. 21.Which drawing is the symbol for a diode? (a) a long and a short line (b) triangle against a bar (c) a circle with a cross (d) a dot where wires meet
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) LED (c) battery (d) bulb
23. 23.True or false: a plain rectangle is the symbol for a voltmeter. (a) True (b) False
24. 24.Which drawing is the symbol for a bulb? (a) a long and a short line (b) triangle against a bar (c) a circle with a cross (d) one tall, one short bar
25. 25.Which drawing is the symbol for a switch? (a) a plain rectangle (b) one tall, one short bar (c) a line lifted at a gap (d) a circle with M inside
26. 26.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) junction (b) resistor (c) diode (d) battery
27. 27.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a plain rectangle (c) a circle with M inside (d) a circle with A inside
28. 28.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) to make it colourful (d) quick and clear for all
29. 29.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) ammeter (b) motor (c) LED (d) capacitor
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) capacitor (b) bulb (c) junction (d) resistor
32. 32.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) one tall, one short bar (c) a dot where wires meet (d) triangle against a bar
33. 33.Which drawing is the symbol for a cell? (a) a small empty box (b) a circle with a cross (c) many long-short pairs (d) a long and a short line
34. 34.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) ammeter (c) wire (d) cell
35. 35.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with M inside (c) two equal parallel lines (d) a plain rectangle
36. 36.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
37. 37.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) switch (c) battery (d) ammeter
38. 38.True or false: many long-short pairs is the symbol for a cell. (a) True (b) False
39. 39.True or false: two equal parallel lines is the symbol for a battery. (a) False (b) True
40. 40.Which drawing is the symbol for a voltmeter? (a) a straight line (b) a circle with V inside (c) a circle with M inside (d) triangle, bar and arrows

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