Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 642 · 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 cell? (a) a dot where wires meet (b) a small empty box (c) a circle with a cross (d) a long and a short line
2. 2.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) symbols are heavier (d) to make it colourful
3. 3.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) voltmeter (c) cell (d) junction
4. 4.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a line lifted at a gap (c) a dot where wires meet (d) one tall, one short bar
5. 5.Which drawing is the symbol for a battery? (a) a small empty box (b) a straight line (c) a circle with a cross (d) two or more cell symbols
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) voltmeter (b) bulb (c) LED (d) cell
7. 7.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) cell (c) diode (d) junction
8. 8.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
9. 9.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) switch (c) cell (d) ammeter
11. 11.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
12. 12.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) little stars (d) wavy lines
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) switch (b) resistor (c) motor (d) voltmeter
14. 14.True or false: two or more cell symbols is the symbol for a resistor. (a) False (b) True
15. 15.Which drawing is the symbol for a diode? (a) one tall, one short bar (b) a small empty box (c) triangle, bar and arrows (d) triangle against a bar
16. 16.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) bulb (b) wire (c) capacitor (d) resistor
17. 17.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) switch (b) battery (c) junction (d) voltmeter
18. 18.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
19. 19.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) bulb (c) cell (d) capacitor
20. 20.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) battery (c) bulb (d) junction
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) motor (b) switch (c) voltmeter (d) ammeter
22. 22.Which drawing is the symbol for a switch? (a) one tall, one short bar (b) a line lifted at a gap (c) two equal parallel lines (d) triangle, bar and arrows
23. 23.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
24. 24.Which drawing is the symbol for an LED? (a) a long and a short line (b) a dot where wires meet (c) a small empty box (d) triangle, bar and arrows
25. 25.Which drawing is the symbol for a battery? (a) a circle with M inside (b) a line lifted at a gap (c) a circle with V inside (d) many long-short pairs
26. 26.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) capacitor (b) switch (c) cell (d) resistor
28. 28.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) wire (c) LED (d) ammeter
29. 29.True or false: many long-short pairs is the symbol for a cell. (a) True (b) False
30. 30.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) capacitor (b) diode (c) resistor (d) bulb
32. 32.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) triangle against a bar (c) a small empty box (d) a circle with A inside
33. 33.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) cell (c) capacitor (d) junction
34. 34.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) LED (b) voltmeter (c) cell (d) diode
35. 35.Which drawing is the symbol for a motor? (a) a circle with A inside (b) a circle with M inside (c) a line lifted at a gap (d) many long-short pairs
36. 36.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
37. 37.Which drawing is the symbol for a capacitor? (a) two or more cell symbols (b) a circle with V inside (c) two equal parallel lines (d) a circle with M inside
38. 38.True or false: triangle against a bar is the symbol for an LED. (a) False (b) True
39. 39.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
40. 40.True or false: triangle, bar and arrows is the symbol for a capacitor. (a) True (b) False

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