Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 91 · 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 wire. (a) True (b) False
2. 2.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) cell (c) motor (d) ammeter
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
4. 4.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) cell (c) resistor (d) bulb
5. 5.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with A inside (c) triangle, bar and arrows (d) a circle with V inside
6. 6.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) symbols are heavier (d) to make it colourful
7. 7.✏️ In a circuit diagram, which part is drawn as a straight line? (a) junction (b) wire (c) diode (d) LED
8. 8.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) one tall, one short bar (c) a circle with a cross (d) a circle with A inside
9. 9.True or false: a line lifted at a gap is the symbol for a junction. (a) False (b) True
10. 10.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
11. 11.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) junction (b) ammeter (c) resistor (d) battery
12. 12.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
13. 13.Which drawing is the symbol for an LED? (a) two or more cell symbols (b) a plain rectangle (c) triangle, bar and arrows (d) a circle with M inside
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) switch (c) battery (d) bulb
15. 15.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) switch (c) resistor (d) battery
16. 16.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a line lifted at a gap (c) one tall, one short bar (d) a circle with V inside
17. 17.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) motor (c) switch (d) capacitor
18. 18.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) ammeter (c) battery (d) cell
19. 19.True or false: a circle with M inside is the symbol for an ammeter. (a) False (b) True
20. 20.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
21. 21.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
22. 22.True or false: triangle against a bar is the symbol for a switch. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) bulb (c) LED (d) voltmeter
24. 24.True or false: triangle, bar and arrows is the symbol for a wire. (a) True (b) False
25. 25.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) cell (c) bulb (d) diode
27. 27.True or false: many long-short pairs is the symbol for a switch. (a) True (b) False
28. 28.True or false: two equal parallel lines is the symbol for a bulb. (a) False (b) True
29. 29.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) a small empty box (c) a circle with a cross (d) a circle with M inside
30. 30.True or false: a straight line is the symbol for a battery. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) capacitor (c) junction (d) switch
32. 32.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a small empty box (c) triangle against a bar (d) many long-short pairs
33. 33.True or false: a long and a short line is the symbol for a bulb. (a) False (b) True
34. 34.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a circle with A inside (c) one tall, one short bar (d) two equal parallel lines
35. 35.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) junction (c) ammeter (d) diode
36. 36.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) motor (b) voltmeter (c) switch (d) battery
37. 37.True or false: a plain rectangle is the symbol for a diode. (a) False (b) True
38. 38.True or false: a long and a short line is the symbol for a motor. (a) True (b) False
39. 39.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
40. 40.Which drawing is the symbol for a cell? (a) a circle with V inside (b) a plain rectangle (c) a line lifted at a gap (d) a long and a short line

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