Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 183 · 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) the longer line (b) the shorter line (c) both lines (d) neither line
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
3. 3.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) LED (c) bulb (d) ammeter
4. 4.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) LED (c) capacitor (d) ammeter
5. 5.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
6. 6.Which drawing is the symbol for an LED? (a) a straight line (b) a small empty box (c) a circle with a cross (d) triangle, bar and arrows
7. 7.Which drawing is the symbol for a switch? (a) triangle, bar and arrows (b) a line lifted at a gap (c) a circle with V inside (d) a circle with A inside
8. 8.True or false: a circle with a cross is the symbol for a voltmeter. (a) True (b) False
9. 9.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) to make it colourful (d) quick and clear for all
10. 10.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) battery (c) cell (d) wire
11. 11.Which drawing is the symbol for a diode? (a) triangle, bar and arrows (b) a circle with an X in it (c) a circle with A inside (d) triangle against a bar
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) bulb (c) wire (d) battery
13. 13.True or false: a long and a short line is the symbol for a wire. (a) False (b) True
14. 14.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) many long-short pairs (c) triangle, bar and arrows (d) a circle with V inside
15. 15.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) voltmeter (c) switch (d) bulb
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) motor (b) voltmeter (c) ammeter (d) cell
18. 18.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) diode (c) wire (d) switch
19. 19.Which drawing is the symbol for a junction? (a) two equal parallel lines (b) one tall, one short bar (c) a dot where wires meet (d) a long and a short line
20. 20.Which drawing is the symbol for an ammeter? (a) triangle, bar and arrows (b) a circle with A inside (c) one tall, one short bar (d) a circle with M inside
21. 21.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) battery (c) ammeter (d) capacitor
22. 22.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) motor (b) battery (c) junction (d) diode
23. 23.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
24. 24.True or false: a dot where wires meet is the symbol for a switch. (a) True (b) False
25. 25.True or false: a straight line is the symbol for a wire. (a) False (b) True
26. 26.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
27. 27.True or false: two equal parallel lines is the symbol for a cell. (a) True (b) False
28. 28.Which drawing is the symbol for a voltmeter? (a) a line lifted at a gap (b) a circle with A inside (c) a circle with V inside (d) triangle against a bar
29. 29.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) motor (c) resistor (d) junction
30. 30.True or false: one tall, one short bar is the symbol for a battery. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) capacitor (c) resistor (d) junction
32. 32.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
33. 33.Which drawing is the symbol for a wire? (a) a straight line (b) a line lifted at a gap (c) one tall, one short bar (d) a circle with a cross
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) LED (c) junction (d) battery
35. 35.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
36. 36.Which drawing is the symbol for a motor? (a) a circle with an X in it (b) a long and a short line (c) a small empty box (d) a circle with M inside
37. 37.Which drawing is the symbol for a battery? (a) a plain rectangle (b) a circle with a cross (c) a dot where wires meet (d) two or more cell symbols
38. 38.True or false: a dot where wires meet is the symbol for a resistor. (a) False (b) True
39. 39.Which drawing is the symbol for a bulb? (a) a small empty box (b) a circle with an X in it (c) a line lifted at a gap (d) a long and a short line
40. 40.True or false: two or more cell symbols is the symbol for a resistor. (a) False (b) True

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