Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 672 · 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) resistor (b) motor (c) battery (d) ammeter
2. 2.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) triangle against a bar (c) triangle, bar and arrows (d) a circle with a cross
3. 3.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
4. 4.True or false: many long-short pairs is the symbol for a cell. (a) False (b) True
5. 5.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) a plain rectangle (c) a circle with M inside (d) one tall, one short bar
6. 6.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) to make it colourful (d) symbols are heavier
7. 7.True or false: a circle with a cross is the symbol for a switch. (a) False (b) True
8. 8.True or false: a circle with a cross is the symbol for an ammeter. (a) True (b) False
9. 9.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) cell (c) switch (d) diode
10. 10.Which drawing is the symbol for an LED? (a) many long-short pairs (b) triangle, bar and arrows (c) a straight line (d) two equal parallel lines
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) voltmeter (c) diode (d) bulb
12. 12.✏️ In a circuit diagram, which part is drawn as a straight line? (a) diode (b) capacitor (c) motor (d) wire
13. 13.Which drawing is the symbol for a battery? (a) a small empty box (b) a circle with a cross (c) one tall, one short bar (d) two or more cell symbols
14. 14.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
15. 15.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) LED (b) resistor (c) cell (d) battery
16. 16.Which drawing is the symbol for a switch? (a) a circle with an X in it (b) two or more cell symbols (c) a line lifted at a gap (d) a plain rectangle
17. 17.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) bulb (c) junction (d) diode
18. 18.Which drawing is the symbol for a diode? (a) a straight line (b) a small empty box (c) one tall, one short bar (d) triangle against a bar
19. 19.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
20. 20.True or false: a small empty box is the symbol for a battery. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) resistor (c) cell (d) battery
22. 22.Which drawing is the symbol for a cell? (a) a circle with V inside (b) two equal parallel lines (c) many long-short pairs (d) one tall, one short bar
23. 23.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) a circle with a cross (c) a circle with A inside (d) a small empty box
24. 24.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) a circle with A inside (c) two or more cell symbols (d) a long and a short line
25. 25.Which drawing is the symbol for a motor? (a) many long-short pairs (b) a small empty box (c) a long and a short line (d) a circle with M inside
26. 26.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
27. 27.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) one tall, one short bar (c) a circle with V inside (d) a small empty box
28. 28.True or false: a circle with a cross is the symbol for a cell. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) junction (b) LED (c) wire (d) motor
30. 30.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) diode (c) battery (d) motor
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) wire (c) motor (d) ammeter
33. 33.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
34. 34.True or false: a long and a short line is the symbol for a wire. (a) True (b) False
35. 35.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) a circle with V inside (c) a circle with a cross (d) many long-short pairs
36. 36.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) bulb (c) LED (d) battery
37. 37.True or false: a straight line is the symbol for a wire. (a) False (b) True
38. 38.Which drawing is the symbol for a wire? (a) one tall, one short bar (b) a straight line (c) a circle with V inside (d) a line lifted at a gap
39. 39.True or false: a straight line is the symbol for a motor. (a) True (b) False
40. 40.True or false: a long and a short line is the symbol for a battery. (a) False (b) True

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