Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 788 · 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 circle with M inside is the symbol for a wire. (a) True (b) False
2. 2.✏️ 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
3. 3.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) both lines (d) the shorter line
4. 4.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
5. 5.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) a line lifted at a gap (c) a long and a short line (d) a circle with an X in it
6. 6.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) voltmeter (c) ammeter (d) switch
7. 7.Which drawing is the symbol for a capacitor? (a) a dot where wires meet (b) two equal parallel lines (c) one tall, one short bar (d) a small empty box
8. 8.True or false: two equal parallel lines is the symbol for an LED. (a) False (b) True
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) bulb (c) junction (d) LED
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) LED (c) resistor (d) bulb
11. 11.True or false: a dot where wires meet is the symbol for a motor. (a) False (b) True
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) ammeter (b) resistor (c) wire (d) voltmeter
13. 13.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
14. 14.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) resistor (b) ammeter (c) motor (d) switch
15. 15.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) little stars (d) wavy lines
16. 16.Which drawing is the symbol for an LED? (a) a dot where wires meet (b) triangle, bar and arrows (c) a plain rectangle (d) one tall, one short bar
17. 17.True or false: one tall, one short bar is the symbol for a wire. (a) True (b) False
18. 18.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
19. 19.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) LED (b) junction (c) ammeter (d) switch
20. 20.Which drawing is the symbol for a battery? (a) many long-short pairs (b) one tall, one short bar (c) a straight line (d) a circle with an X in it
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) motor (c) junction (d) capacitor
22. 22.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) voltmeter (c) motor (d) resistor
23. 23.Which drawing is the symbol for a motor? (a) triangle against a bar (b) a circle with M inside (c) a straight line (d) a circle with a cross
24. 24.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) switch (c) cell (d) wire
25. 25.True or false: one tall, one short bar is the symbol for a bulb. (a) False (b) True
26. 26.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
27. 27.True or false: a circle with A inside is the symbol for a switch. (a) True (b) False
28. 28.True or false: a circle with M inside is the symbol for an LED. (a) True (b) False
29. 29.Which drawing is the symbol for a cell? (a) a long and a short line (b) a plain rectangle (c) a circle with A inside (d) triangle, bar and arrows
30. 30.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) capacitor (b) bulb (c) battery (d) resistor
31. 31.True or false: a plain rectangle is the symbol for a junction. (a) True (b) False
32. 32.Which drawing is the symbol for a resistor? (a) one tall, one short bar (b) two or more cell symbols (c) a circle with A inside (d) a plain rectangle
33. 33.Which drawing is the symbol for a junction? (a) a circle with a cross (b) two or more cell symbols (c) two equal parallel lines (d) a dot where wires meet
34. 34.Which drawing is the symbol for a bulb? (a) a straight line (b) a line lifted at a gap (c) triangle, bar and arrows (d) a circle with a cross
35. 35.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) triangle, bar and arrows (c) a line lifted at a gap (d) two or more cell symbols
36. 36.Which drawing is the symbol for a switch? (a) triangle, bar and arrows (b) a line lifted at a gap (c) a long and a short line (d) a plain rectangle
37. 37.Which drawing is the symbol for a voltmeter? (a) a straight line (b) a circle with V inside (c) a circle with M inside (d) two equal parallel lines
38. 38.True or false: a circle with a cross is the symbol for a battery. (a) True (b) False
39. 39.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
40. 40.True or false: a line lifted at a gap is the symbol for a diode. (a) True (b) False

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