Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 65 · 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: many long-short pairs is the symbol for a switch. (a) False (b) True
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
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.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) resistor (c) bulb (d) diode
5. 5.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) two equal parallel lines
6. 6.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with an X in it (c) a circle with A inside (d) a line lifted at a gap
7. 7.True or false: a straight line is the symbol for a diode. (a) True (b) False
8. 8.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) wire (b) motor (c) LED (d) switch
9. 9.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) a line lifted at a gap (c) a small empty box (d) a circle with an X in it
10. 10.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) diode (c) switch (d) voltmeter
11. 11.Which drawing is the symbol for a motor? (a) a circle with M inside (b) triangle against a bar (c) two or more cell symbols (d) triangle, bar and arrows
12. 12.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) voltmeter (c) switch (d) capacitor
13. 13.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) wire (b) resistor (c) diode (d) battery
14. 14.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
15. 15.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) wire (c) junction (d) cell
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) motor (c) junction (d) wire
17. 17.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) one tall, one short bar (c) many long-short pairs (d) a long and a short line
18. 18.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) capacitor (c) resistor (d) wire
19. 19.True or false: a circle with a cross is the symbol for a junction. (a) False (b) True
20. 20.True or false: two equal parallel lines is the symbol for an LED. (a) False (b) True
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) ammeter (b) junction (c) capacitor (d) voltmeter
22. 22.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
23. 23.True or false: a straight line is the symbol for a resistor. (a) True (b) False
24. 24.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
25. 25.True or false: a circle with a cross is the symbol for a switch. (a) False (b) True
26. 26.Which drawing is the symbol for an LED? (a) a small empty box (b) triangle, bar and arrows (c) a long and a short line (d) triangle against a bar
27. 27.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) a long and a short line
28. 28.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
29. 29.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) triangle, bar and arrows (c) a circle with V inside (d) a circle with M inside
30. 30.Which drawing is the symbol for a cell? (a) a small empty box (b) one tall, one short bar (c) two or more cell symbols (d) a straight line
31. 31.True or false: two equal parallel lines is the symbol for a cell. (a) True (b) False
32. 32.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) quick and clear for all (d) to hide the circuit
33. 33.True or false: a straight line is the symbol for a wire. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) battery (c) switch (d) LED
35. 35.True or false: a circle with M inside is the symbol for a junction. (a) True (b) False
36. 36.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) a plain rectangle (c) a long and a short line (d) many long-short pairs
37. 37.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) wire (b) ammeter (c) resistor (d) voltmeter
38. 38.True or false: a long and a short line is the symbol for a bulb. (a) False (b) True
39. 39.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) junction (c) motor (d) resistor
40. 40.Which drawing is the symbol for a wire? (a) a straight line (b) many long-short pairs (c) two or more cell symbols (d) a line lifted at a gap

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