Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 419 · 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 dot where wires meet is the symbol for a junction. (a) True (b) False
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) wire (b) switch (c) voltmeter (d) ammeter
3. 3.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
5. 5.True or false: a circle with V inside is the symbol for a bulb. (a) True (b) False
6. 6.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a straight line (c) triangle against a bar (d) a circle with M inside
7. 7.True or false: a long and a short line is the symbol for a bulb. (a) True (b) False
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) battery (c) bulb (d) switch
9. 9.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) triangle against a bar (c) triangle, bar and arrows (d) two equal parallel lines
10. 10.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
11. 11.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) motor (c) diode (d) LED
12. 12.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) one tall, one short bar (c) a small empty box (d) a circle with a cross
13. 13.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) ammeter (b) cell (c) resistor (d) capacitor
14. 14.Which drawing is the symbol for a motor? (a) a small empty box (b) a line lifted at a gap (c) a long and a short line (d) a circle with M inside
15. 15.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) diode (c) switch (d) cell
16. 16.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) capacitor (c) LED (d) voltmeter
17. 17.True or false: a circle with A inside is the symbol for a bulb. (a) True (b) False
18. 18.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) symbols are heavier (d) quick and clear for all
19. 19.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) a circle with V inside (c) one tall, one short bar (d) a plain rectangle
20. 20.True or false: a line lifted at a gap is the symbol for a capacitor. (a) True (b) False
21. 21.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) switch (c) resistor (d) battery
23. 23.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) one tall, one short bar (c) a long and a short line (d) a circle with V inside
24. 24.Which drawing is the symbol for a voltmeter? (a) triangle, bar and arrows (b) a circle with M inside (c) a circle with V inside (d) two equal parallel lines
25. 25.True or false: a circle with V inside is the symbol for a junction. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) wire (b) diode (c) battery (d) resistor
27. 27.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) a small empty box (c) a long and a short line (d) a circle with M inside
28. 28.True or false: a plain rectangle is the symbol for an ammeter. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) capacitor (b) junction (c) motor (d) LED
30. 30.Which drawing is the symbol for a bulb? (a) a straight line (b) a line lifted at a gap (c) a circle with a cross (d) a plain rectangle
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) capacitor (b) switch (c) resistor (d) voltmeter
32. 32.True or false: a circle with M inside is the symbol for an ammeter. (a) True (b) False
33. 33.True or false: a long and a short line is the symbol for a wire. (a) False (b) True
34. 34.True or false: one tall, one short bar is the symbol for a junction. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as a straight line? (a) capacitor (b) wire (c) switch (d) motor
36. 36.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
37. 37.Which drawing is the symbol for a junction? (a) one tall, one short bar (b) a circle with an X in it (c) triangle against a bar (d) a dot where wires meet
38. 38.True or false: a long and a short line is the symbol for a switch. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) bulb (c) motor (d) capacitor
40. 40.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) capacitor (c) bulb (d) junction

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