Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 142 · 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.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) a straight line (c) a circle with a cross (d) a plain rectangle
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) the shorter line (d) neither line
3. 3.True or false: triangle against a bar is the symbol for a motor. (a) True (b) False
4. 4.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) to make it colourful (d) quick and clear for all
5. 5.True or false: a small empty box is the symbol for a bulb. (a) False (b) True
6. 6.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) voltmeter (c) motor (d) cell
7. 7.Which drawing is the symbol for an LED? (a) a plain rectangle (b) triangle against a bar (c) a circle with M inside (d) triangle, bar and arrows
8. 8.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
9. 9.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
10. 10.Which drawing is the symbol for a battery? (a) a circle with M inside (b) a plain rectangle (c) two or more cell symbols (d) a line lifted at a gap
11. 11.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) many long-short pairs (c) a circle with M inside (d) a circle with a cross
12. 12.True or false: a circle with A inside is the symbol for a bulb. (a) False (b) True
13. 13.True or false: a small empty box is the symbol for a diode. (a) True (b) False
14. 14.True or false: a straight line is the symbol for a cell. (a) True (b) False
15. 15.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) switch (b) bulb (c) ammeter (d) resistor
16. 16.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) motor (c) switch (d) bulb
18. 18.True or false: two equal parallel lines is the symbol for a bulb. (a) True (b) False
19. 19.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
20. 20.Which drawing is the symbol for a switch? (a) a circle with A inside (b) triangle, bar and arrows (c) a circle with M inside (d) a line lifted at a gap
21. 21.True or false: triangle against a bar is the symbol for a bulb. (a) True (b) False
22. 22.True or false: a straight line is the symbol for a resistor. (a) False (b) True
23. 23.True or false: a dot where wires meet is the symbol for a capacitor. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) battery (c) wire (d) motor
25. 25.True or false: a long and a short line is the symbol for a bulb. (a) False (b) True
26. 26.Which drawing is the symbol for a motor? (a) a plain rectangle (b) a circle with M inside (c) a small empty box (d) a circle with an X in it
27. 27.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) diode (c) LED (d) ammeter
28. 28.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) resistor (c) motor (d) voltmeter
30. 30.True or false: a circle with V inside is the symbol for a cell. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) junction (b) battery (c) voltmeter (d) resistor
32. 32.Which drawing is the symbol for an ammeter? (a) two equal parallel lines (b) a circle with A inside (c) a circle with a cross (d) two or more cell symbols
33. 33.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a circle with a cross (c) two or more cell symbols (d) a circle with V inside
34. 34.True or false: a circle with a cross is the symbol for a capacitor. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) motor (c) bulb (d) diode
36. 36.True or false: two or more cell symbols is the symbol for a voltmeter. (a) False (b) True
37. 37.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) a line lifted at a gap (c) a small empty box (d) a circle with an X in it
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) wire (c) cell (d) junction
39. 39.Which drawing is the symbol for a junction? (a) a straight line (b) a circle with a cross (c) a dot where wires meet (d) one tall, one short bar
40. 40.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) battery (c) junction (d) cell

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