Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 919 · 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 small empty box? (a) resistor (b) LED (c) cell (d) bulb
2. 2.Which drawing is the symbol for a battery? (a) a small empty box (b) two or more cell symbols (c) triangle against a bar (d) triangle, bar and arrows
3. 3.Which drawing is the symbol for an ammeter? (a) two or more cell symbols (b) a circle with A inside (c) a circle with an X in it (d) one tall, one short bar
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) both lines (d) neither line
5. 5.Which drawing is the symbol for a voltmeter? (a) a small empty box (b) triangle against a bar (c) triangle, bar and arrows (d) a circle with V inside
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) cell (c) switch (d) bulb
7. 7.True or false: a long and a short line is the symbol for a switch. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) cell (b) wire (c) motor (d) voltmeter
9. 9.Which drawing is the symbol for a junction? (a) two or more cell symbols (b) a dot where wires meet (c) two equal parallel lines (d) triangle against a bar
10. 10.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
11. 11.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
12. 12.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) diode (c) ammeter (d) wire
14. 14.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
15. 15.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) junction (c) motor (d) cell
16. 16.True or false: one tall, one short bar is the symbol for a diode. (a) False (b) True
17. 17.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) capacitor (b) wire (c) junction (d) resistor
18. 18.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) junction (c) switch (d) battery
19. 19.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a circle with a cross (c) one tall, one short bar (d) a circle with an X in it
20. 20.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) a circle with an X in it (c) many long-short pairs (d) a line lifted at a gap
21. 21.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) wavy lines (d) dotted circles
22. 22.✏️ 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
23. 23.Which drawing is the symbol for a battery? (a) triangle, bar and arrows (b) two equal parallel lines (c) a circle with M inside (d) many long-short pairs
24. 24.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) two or more cell symbols (c) a circle with a cross (d) triangle against a bar
25. 25.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) voltmeter (c) capacitor (d) junction
26. 26.Which drawing is the symbol for a motor? (a) many long-short pairs (b) a circle with A inside (c) a circle with M inside (d) a dot where wires meet
27. 27.True or false: a straight line is the symbol for a wire. (a) False (b) True
28. 28.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
29. 29.True or false: two equal parallel lines is the symbol for an LED. (a) True (b) False
30. 30.True or false: a circle with A inside is the symbol for an LED. (a) False (b) True
31. 31.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) junction (c) ammeter (d) voltmeter
33. 33.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) a circle with V inside (c) a small empty box (d) a circle with A inside
34. 34.True or false: a circle with a cross is the symbol for an ammeter. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) LED (b) switch (c) bulb (d) battery
36. 36.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) a circle with M inside (c) a plain rectangle (d) a long and a short line
37. 37.Which drawing is the symbol for an LED? (a) two or more cell symbols (b) a line lifted at a gap (c) a circle with V inside (d) triangle, bar and arrows
38. 38.True or false: two or more cell symbols is the symbol for a wire. (a) True (b) False
39. 39.Which drawing is the symbol for a switch? (a) triangle, bar and arrows (b) a line lifted at a gap (c) two or more cell symbols (d) a plain rectangle
40. 40.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) voltmeter (c) motor (d) cell

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