Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 510 · 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 circuit diagram, which part is drawn as a circle with V inside? (a) battery (b) resistor (c) voltmeter (d) switch
2. 2.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) quick and clear for all (d) to hide the circuit
3. 3.True or false: a circle with a cross is the symbol for a switch. (a) True (b) False
4. 4.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) bulb (c) switch (d) capacitor
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) motor (b) cell (c) wire (d) bulb
6. 6.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) wire (c) cell (d) ammeter
7. 7.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) cell (c) battery (d) resistor
8. 8.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) voltmeter (b) resistor (c) motor (d) battery
9. 9.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
10. 10.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
11. 11.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
12. 12.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) voltmeter (b) junction (c) cell (d) bulb
13. 13.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) diode (c) cell (d) switch
14. 14.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) switch (c) diode (d) battery
15. 15.Which drawing is the symbol for a battery? (a) a straight line (b) triangle against a bar (c) many long-short pairs (d) a plain rectangle
16. 16.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) a small empty box (c) a circle with a cross (d) triangle, bar and arrows
17. 17.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) neither line (d) the longer line
18. 18.True or false: two or more cell symbols is the symbol for a wire. (a) False (b) True
19. 19.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) LED (c) battery (d) motor
20. 20.Which drawing is the symbol for a motor? (a) a small empty box (b) one tall, one short bar (c) a circle with M inside (d) two or more cell symbols
21. 21.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) voltmeter (b) battery (c) cell (d) resistor
22. 22.True or false: a circle with A inside is the symbol for a voltmeter. (a) False (b) True
23. 23.Which drawing is the symbol for an LED? (a) a dot where wires meet (b) triangle against a bar (c) triangle, bar and arrows (d) a plain rectangle
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) capacitor (c) junction (d) diode
25. 25.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) one tall, one short bar (c) a circle with A inside (d) a plain rectangle
26. 26.True or false: triangle, bar and arrows is the symbol for a diode. (a) False (b) True
27. 27.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
28. 28.Which drawing is the symbol for an ammeter? (a) triangle, bar and arrows (b) two equal parallel lines (c) a circle with A inside (d) a dot where wires meet
29. 29.Which drawing is the symbol for a capacitor? (a) a plain rectangle (b) two equal parallel lines (c) a circle with A inside (d) a circle with an X in it
30. 30.True or false: triangle against a bar is the symbol for a bulb. (a) True (b) False
31. 31.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
32. 32.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
33. 33.Which drawing is the symbol for a cell? (a) a circle with M inside (b) a circle with V inside (c) triangle, bar and arrows (d) one tall, one short bar
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) diode (c) voltmeter (d) ammeter
35. 35.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
36. 36.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) junction (c) wire (d) capacitor
37. 37.True or false: a circle with an X in it is the symbol for a battery. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) wire (b) LED (c) junction (d) voltmeter
39. 39.True or false: a line lifted at a gap is the symbol for an ammeter. (a) True (b) False
40. 40.Which drawing is the symbol for a diode? (a) a circle with M inside (b) triangle against a bar (c) one tall, one short bar (d) triangle, bar and arrows

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