Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 300 · 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.Which drawing is the symbol for a cell? (a) a long and a short line (b) a dot where wires meet (c) two or more cell symbols (d) triangle against a bar
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) diode (b) LED (c) wire (d) bulb
3. 3.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) to make it colourful (d) quick and clear for all
4. 4.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) resistor (b) capacitor (c) battery (d) diode
5. 5.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) many long-short pairs (c) a circle with a cross (d) a straight line
6. 6.True or false: a straight line is the symbol for a battery. (a) False (b) True
7. 7.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) a line lifted at a gap (c) many long-short pairs (d) triangle, bar and arrows
8. 8.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) a straight line (c) a circle with a cross (d) a small empty box
9. 9.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) the shorter line (d) neither line
10. 10.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
11. 11.Which drawing is the symbol for a diode? (a) a line lifted at a gap (b) triangle against a bar (c) a long and a short line (d) a small empty box
12. 12.True or false: a circle with M inside is the symbol for a diode. (a) False (b) True
13. 13.True or false: two or more cell symbols is the symbol for a switch. (a) False (b) True
14. 14.True or false: one tall, one short bar is the symbol for a resistor. (a) True (b) False
15. 15.Which drawing is the symbol for an ammeter? (a) many long-short pairs (b) a dot where wires meet (c) a circle with A inside (d) a circle with an X in it
16. 16.True or false: one tall, one short bar is the symbol for a bulb. (a) True (b) False
17. 17.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) straight lines (d) wavy lines
18. 18.True or false: a circle with V inside is the symbol for a cell. (a) False (b) True
19. 19.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a dot where wires meet (c) a straight line (d) a plain rectangle
20. 20.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) motor (c) cell (d) wire
21. 21.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) motor (b) voltmeter (c) bulb (d) LED
23. 23.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) cell (c) ammeter (d) junction
24. 24.Which drawing is the symbol for a motor? (a) a circle with a cross (b) a straight line (c) a circle with M inside (d) a long and a short line
25. 25.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) voltmeter (c) cell (d) bulb
26. 26.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) switch (c) ammeter (d) LED
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) switch (c) ammeter (d) resistor
28. 28.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) False (b) True
29. 29.Which drawing is the symbol for a capacitor? (a) a small empty box (b) many long-short pairs (c) triangle, bar and arrows (d) two equal parallel lines
30. 30.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) bulb (c) voltmeter (d) battery
32. 32.Which drawing is the symbol for a wire? (a) a straight line (b) a circle with a cross (c) two or more cell symbols (d) a line lifted at a gap
33. 33.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) capacitor (c) cell (d) LED
34. 34.Which drawing is the symbol for a battery? (a) a circle with A inside (b) triangle against a bar (c) two or more cell symbols (d) one tall, one short bar
35. 35.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
36. 36.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) motor (b) wire (c) resistor (d) bulb
38. 38.✏️ In a circuit diagram, which part is drawn as a straight line? (a) LED (b) wire (c) voltmeter (d) diode
39. 39.Which drawing is the symbol for a voltmeter? (a) a dot where wires meet (b) a plain rectangle (c) two equal parallel lines (d) a circle with V inside
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) wire (c) cell (d) motor

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