Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 962 · 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 voltmeter. (a) False (b) True
2. 2.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a small empty box (c) a circle with an X in it (d) a dot where wires meet
3. 3.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
4. 4.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) cell (c) diode (d) voltmeter
5. 5.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) LED (c) cell (d) resistor
6. 6.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
7. 7.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) quick and clear for all (d) symbols are heavier
8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
9. 9.True or false: triangle against a bar is the symbol for a switch. (a) False (b) True
10. 10.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) resistor (c) cell (d) bulb
11. 11.True or false: a small empty box is the symbol for a junction. (a) True (b) False
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) voltmeter (c) switch (d) cell
13. 13.✏️ In a circuit diagram, which part is drawn as a straight line? (a) ammeter (b) wire (c) cell (d) voltmeter
14. 14.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) two or more cell symbols (c) a straight line (d) a circle with A inside
15. 15.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) junction (c) wire (d) cell
17. 17.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) diode (b) motor (c) switch (d) LED
18. 18.True or false: a straight line is the symbol for a junction. (a) True (b) False
19. 19.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) diode (b) LED (c) voltmeter (d) resistor
20. 20.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
21. 21.True or false: a circle with a cross is the symbol for a junction. (a) True (b) False
22. 22.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) triangle against a bar (c) a circle with a cross (d) a circle with an X in it
23. 23.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) ammeter (b) motor (c) bulb (d) voltmeter
25. 25.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with A inside (c) a small empty box (d) a straight line
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) resistor (c) diode (d) switch
27. 27.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) junction (b) ammeter (c) battery (d) capacitor
28. 28.True or false: a circle with M inside is the symbol for a bulb. (a) True (b) False
29. 29.Which drawing is the symbol for a resistor? (a) one tall, one short bar (b) a long and a short line (c) a circle with an X in it (d) a plain rectangle
30. 30.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
31. 31.True or false: two equal parallel lines is the symbol for a resistor. (a) True (b) False
32. 32.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
33. 33.Which drawing is the symbol for a bulb? (a) a long and a short line (b) triangle, bar and arrows (c) a circle with A inside (d) a circle with an X in it
34. 34.Which drawing is the symbol for a capacitor? (a) a small empty box (b) two equal parallel lines (c) a circle with A inside (d) a circle with a cross
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) battery (b) junction (c) ammeter (d) switch
36. 36.True or false: a circle with A inside is the symbol for a capacitor. (a) True (b) False
37. 37.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a circle with A inside (c) a small empty box (d) a long and a short line
38. 38.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) capacitor (c) wire (d) motor
39. 39.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
40. 40.True or false: a plain rectangle is the symbol for a bulb. (a) False (b) True

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