Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 986 · 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) both lines (b) the shorter line (c) the longer line (d) neither line
2. 2.Which drawing is the symbol for a switch? (a) a circle with M inside (b) a line lifted at a gap (c) a straight line (d) a circle with a cross
3. 3.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) to hide the circuit (d) quick and clear for all
4. 4.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) cell (c) junction (d) battery
5. 5.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a circle with an X in it (c) triangle, bar and arrows (d) a straight line
6. 6.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) voltmeter (b) motor (c) resistor (d) wire
7. 7.True or false: a circle with A inside is the symbol for a motor. (a) False (b) True
8. 8.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
9. 9.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
10. 10.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) wire (c) junction (d) LED
11. 11.Which drawing is the symbol for a wire? (a) a circle with A inside (b) a straight line (c) two or more cell symbols (d) a line lifted at a gap
12. 12.Which drawing is the symbol for a motor? (a) a long and a short line (b) a circle with M inside (c) a circle with an X in it (d) many long-short pairs
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) junction (c) bulb (d) capacitor
14. 14.True or false: a circle with A inside is the symbol for a voltmeter. (a) False (b) True
15. 15.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) bulb (c) junction (d) wire
16. 16.Which drawing is the symbol for a capacitor? (a) a circle with an X in it (b) a small empty box (c) two equal parallel lines (d) two or more cell symbols
17. 17.True or false: a dot where wires meet is the symbol for a cell. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) switch (c) capacitor (d) wire
19. 19.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) voltmeter (b) bulb (c) switch (d) resistor
21. 21.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) battery (c) switch (d) resistor
22. 22.Which drawing is the symbol for a junction? (a) triangle against a bar (b) a circle with a cross (c) a dot where wires meet (d) a circle with an X in it
23. 23.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) motor (b) cell (c) ammeter (d) LED
24. 24.Which drawing is the symbol for a resistor? (a) triangle against a bar (b) a small empty box (c) a circle with an X in it (d) a circle with M inside
25. 25.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) wire (c) bulb (d) cell
26. 26.Which drawing is the symbol for an ammeter? (a) a circle with a cross (b) two or more cell symbols (c) a circle with A inside (d) two equal parallel lines
27. 27.True or false: two or more cell symbols is the symbol for a cell. (a) True (b) False
28. 28.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) a circle with an X in it (c) a line lifted at a gap (d) a circle with A inside
29. 29.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) diode (c) LED (d) resistor
30. 30.Which drawing is the symbol for an LED? (a) two equal parallel lines (b) a long and a short line (c) triangle, bar and arrows (d) a circle with an X in it
31. 31.True or false: two or more cell symbols is the symbol for an LED. (a) False (b) True
32. 32.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
33. 33.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) switch (c) battery (d) junction
35. 35.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) a line lifted at a gap (c) a circle with a cross (d) a long and a short line
36. 36.True or false: a circle with an X in it is the symbol for a capacitor. (a) False (b) True
37. 37.True or false: two or more cell symbols is the symbol for a diode. (a) True (b) False
38. 38.True or false: a small empty box is the symbol for a diode. (a) False (b) True
39. 39.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) a circle with a cross (c) a circle with an X in it (d) many long-short pairs
40. 40.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True

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