Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 128 · 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.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
2. 2.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
3. 3.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
4. 4.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
5. 5.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) resistor (b) battery (c) switch (d) ammeter
6. 6.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) bulb (b) cell (c) junction (d) ammeter
7. 7.Which drawing is the symbol for a junction? (a) a plain rectangle (b) a long and a short line (c) a dot where wires meet (d) a circle with M inside
8. 8.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) the shorter line (d) neither line
9. 9.Which drawing is the symbol for a diode? (a) a circle with A inside (b) a small empty box (c) triangle against a bar (d) a circle with V inside
10. 10.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) switch (c) capacitor (d) motor
11. 11.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) voltmeter (c) bulb (d) wire
12. 12.True or false: a straight line is the symbol for a wire. (a) False (b) True
13. 13.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) triangle, bar and arrows (c) a circle with M inside (d) two equal parallel lines
14. 14.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
15. 15.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
16. 16.Which drawing is the symbol for a battery? (a) a plain rectangle (b) many long-short pairs (c) a straight line (d) two equal parallel lines
17. 17.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) triangle against a bar (c) two or more cell symbols (d) a circle with A inside
18. 18.Which drawing is the symbol for a motor? (a) one tall, one short bar (b) a circle with A inside (c) a circle with M inside (d) two or more cell symbols
19. 19.Which drawing is the symbol for a bulb? (a) a straight line (b) one tall, one short bar (c) a plain rectangle (d) a circle with a cross
20. 20.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) bulb (c) wire (d) ammeter
21. 21.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) bulb (b) junction (c) cell (d) battery
23. 23.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) motor (c) battery (d) bulb
24. 24.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a straight line (c) a dot where wires meet (d) a long and a short line
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) capacitor (b) diode (c) cell (d) ammeter
26. 26.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) diode (b) voltmeter (c) wire (d) junction
28. 28.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) battery (c) capacitor (d) diode
29. 29.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a circle with V inside (c) a circle with M inside (d) a long and a short line
30. 30.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to make it colourful (d) to hide the circuit
31. 31.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) cell (c) bulb (d) voltmeter
32. 32.True or false: a plain rectangle is the symbol for a voltmeter. (a) False (b) True
33. 33.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
34. 34.True or false: a small empty box is the symbol for a diode. (a) False (b) True
35. 35.True or false: triangle, bar and arrows is the symbol for a capacitor. (a) True (b) False
36. 36.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
37. 37.True or false: many long-short pairs is the symbol for a junction. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) switch (c) battery (d) motor
39. 39.True or false: two equal parallel lines is the symbol for an LED. (a) True (b) False
40. 40.Which drawing is the symbol for a bulb? (a) a long and a short line (b) a straight line (c) triangle against a bar (d) a circle with an X in it

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