Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 233 · 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 LED? (a) a circle with A inside (b) triangle, bar and arrows (c) a circle with an X in it (d) a plain rectangle
2. 2.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
3. 3.True or false: a circle with M inside is the symbol for a cell. (a) False (b) True
4. 4.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) motor (b) battery (c) bulb (d) diode
5. 5.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) many long-short pairs (c) two equal parallel lines (d) a circle with V inside
6. 6.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) ammeter (c) junction (d) motor
7. 7.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) LED (b) motor (c) switch (d) ammeter
9. 9.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the shorter line (d) the longer line
11. 11.Which drawing is the symbol for a junction? (a) many long-short pairs (b) a straight line (c) a long and a short line (d) a dot where wires meet
12. 12.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) voltmeter (c) motor (d) junction
13. 13.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
14. 14.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to make it colourful (d) to hide the circuit
15. 15.True or false: a plain rectangle is the symbol for a bulb. (a) False (b) True
16. 16.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
17. 17.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) a line lifted at a gap (c) a small empty box (d) triangle against a bar
18. 18.Which drawing is the symbol for a motor? (a) a circle with an X in it (b) a circle with A inside (c) triangle against a bar (d) a circle with M inside
19. 19.True or false: a dot where wires meet is the symbol for an ammeter. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) junction (c) ammeter (d) capacitor
21. 21.Which drawing is the symbol for a cell? (a) a straight line (b) a plain rectangle (c) one tall, one short bar (d) a circle with a cross
22. 22.True or false: triangle against a bar is the symbol for a cell. (a) True (b) False
23. 23.Which drawing is the symbol for a capacitor? (a) a circle with M inside (b) two equal parallel lines (c) a circle with a cross (d) a small empty box
24. 24.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) wire (c) battery (d) diode
26. 26.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) two or more cell symbols (c) triangle, bar and arrows (d) one tall, one short bar
27. 27.Which drawing is the symbol for an ammeter? (a) a circle with M inside (b) a circle with V inside (c) a straight line (d) a circle with A inside
28. 28.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) triangle, bar and arrows (c) many long-short pairs (d) a long and a short line
29. 29.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
30. 30.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
31. 31.True or false: triangle against a bar is the symbol for a motor. (a) False (b) True
32. 32.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a plain rectangle (c) a circle with V inside (d) one tall, one short bar
33. 33.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) junction (c) cell (d) voltmeter
35. 35.True or false: a straight line is the symbol for a bulb. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) wire (c) LED (d) battery
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) cell (c) bulb (d) resistor
38. 38.True or false: two or more cell symbols is the symbol for a resistor. (a) False (b) True
39. 39.Which drawing is the symbol for a cell? (a) a circle with a cross (b) a straight line (c) a circle with A inside (d) a long and a short line
40. 40.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) wire (b) ammeter (c) LED (d) resistor

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