Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 47 · 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 circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) junction (c) battery (d) LED
2. 2.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) junction (b) capacitor (c) battery (d) diode
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
4. 4.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
5. 5.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) voltmeter (b) motor (c) capacitor (d) diode
6. 6.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
7. 7.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
8. 8.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
9. 9.True or false: a line lifted at a gap is the symbol for a battery. (a) True (b) False
10. 10.True or false: triangle against a bar is the symbol for a capacitor. (a) True (b) False
11. 11.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) cell (c) motor (d) ammeter
12. 12.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) LED (c) bulb (d) diode
13. 13.True or false: a plain rectangle is the symbol for a cell. (a) False (b) True
14. 14.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
15. 15.Which drawing is the symbol for a diode? (a) a circle with a cross (b) triangle against a bar (c) a line lifted at a gap (d) many long-short pairs
16. 16.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) triangle, bar and arrows (c) a long and a short line (d) a line lifted at a gap
17. 17.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) wire (b) switch (c) ammeter (d) capacitor
18. 18.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) diode (c) bulb (d) battery
19. 19.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to hide the circuit (d) to make it colourful
20. 20.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 long and a short line
21. 21.Which drawing is the symbol for a motor? (a) triangle against a bar (b) a circle with A inside (c) two or more cell symbols (d) a circle with M inside
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) motor (b) voltmeter (c) capacitor (d) bulb
23. 23.True or false: a long and a short line is the symbol for a resistor. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) switch (c) diode (d) bulb
25. 25.Which drawing is the symbol for a cell? (a) a long and a short line (b) a small empty box (c) a circle with M inside (d) a circle with V inside
26. 26.Which drawing is the symbol for an ammeter? (a) a line lifted at a gap (b) a circle with a cross (c) a circle with A inside (d) many long-short pairs
27. 27.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) a circle with M inside (c) one tall, one short bar (d) triangle against a bar
28. 28.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) a long and a short line (c) a circle with a cross (d) many long-short pairs
29. 29.Which drawing is the symbol for a wire? (a) a straight line (b) a circle with an X in it (c) a circle with M inside (d) one tall, one short bar
30. 30.True or false: a small empty box is the symbol for an ammeter. (a) False (b) True
31. 31.Which drawing is the symbol for a junction? (a) one tall, one short bar (b) a circle with a cross (c) a dot where wires meet (d) a straight line
32. 32.True or false: a circle with a cross is the symbol for a wire. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) switch (b) diode (c) junction (d) motor
34. 34.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) wire (c) junction (d) bulb
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) voltmeter (c) motor (d) junction
36. 36.True or false: one tall, one short bar is the symbol for an ammeter. (a) False (b) True
37. 37.True or false: two or more cell symbols is the symbol for a cell. (a) True (b) False
38. 38.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) many long-short pairs (c) a straight line (d) a dot where wires meet
39. 39.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
40. 40.Which drawing is the symbol for a resistor? (a) a line lifted at a gap (b) a straight line (c) a plain rectangle (d) triangle against a bar

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