Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 719 · 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 cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) the shorter line (d) neither line
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) wavy lines (d) little stars
3. 3.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) motor (b) wire (c) voltmeter (d) cell
4. 4.True or false: one tall, one short bar is the symbol for a wire. (a) False (b) True
5. 5.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
6. 6.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) a long and a short line (c) one tall, one short bar (d) two or more cell symbols
7. 7.True or false: one tall, one short bar is the symbol for a bulb. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) switch (c) motor (d) LED
9. 9.Which drawing is the symbol for a diode? (a) a small empty box (b) triangle, bar and arrows (c) a circle with M inside (d) triangle against a bar
10. 10.Which drawing is the symbol for a voltmeter? (a) many long-short pairs (b) a small empty box (c) a circle with V inside (d) triangle against a bar
11. 11.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) quick and clear for all (d) to make it colourful
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) resistor (c) switch (d) wire
13. 13.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) battery (c) LED (d) bulb
14. 14.Which drawing is the symbol for a battery? (a) a long and a short line (b) a circle with M inside (c) many long-short pairs (d) a line lifted at a gap
15. 15.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) a plain rectangle (c) a circle with a cross (d) a dot where wires meet
16. 16.True or false: two equal parallel lines is the symbol for a voltmeter. (a) True (b) False
17. 17.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) wire (c) motor (d) junction
18. 18.Which drawing is the symbol for an ammeter? (a) a plain rectangle (b) a circle with A inside (c) many long-short pairs (d) a circle with an X in it
19. 19.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
20. 20.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) switch (b) diode (c) cell (d) ammeter
22. 22.True or false: two equal parallel lines is the symbol for a bulb. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) resistor (b) diode (c) voltmeter (d) cell
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) wire (c) capacitor (d) bulb
25. 25.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) voltmeter (b) LED (c) resistor (d) bulb
26. 26.True or false: a dot where wires meet is the symbol for a capacitor. (a) True (b) False
27. 27.Which drawing is the symbol for a cell? (a) a straight line (b) a circle with an X in it (c) a circle with V inside (d) one tall, one short bar
28. 28.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) triangle, bar and arrows (c) a long and a short line (d) a small empty box
29. 29.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) wire (c) LED (d) battery
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) switch (b) ammeter (c) motor (d) voltmeter
31. 31.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) bulb (c) cell (d) voltmeter
33. 33.True or false: two equal parallel lines is the symbol for a resistor. (a) False (b) True
34. 34.Which drawing is the symbol for a switch? (a) two equal parallel lines (b) triangle against a bar (c) a line lifted at a gap (d) a dot where wires meet
35. 35.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) wire (b) switch (c) battery (d) LED
36. 36.True or false: two equal parallel lines is the symbol for a junction. (a) False (b) True
37. 37.True or false: a small empty box is the symbol for a voltmeter. (a) True (b) False
38. 38.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
39. 39.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) bulb (c) ammeter (d) motor
40. 40.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) two equal parallel lines (c) a straight line (d) triangle, bar and arrows

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