Electronics Worksheet: Circuit Symbols

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

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