Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 212 · 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, wires are usually drawn as … (a) dotted circles (b) little stars (c) straight lines (d) wavy lines
2. 2.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) junction (c) diode (d) resistor
3. 3.Which drawing is the symbol for a voltmeter? (a) a dot where wires meet (b) a circle with V inside (c) triangle against a bar (d) a circle with a cross
4. 4.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) cell (c) resistor (d) junction
5. 5.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a plain rectangle (c) two or more cell symbols (d) a line lifted at a gap
6. 6.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) quick and clear for all (d) to hide the circuit
7. 7.True or false: a circle with V inside is the symbol for a switch. (a) True (b) False
8. 8.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) resistor (c) LED (d) voltmeter
9. 9.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
10. 10.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) voltmeter (c) switch (d) bulb
12. 12.Which drawing is the symbol for a switch? (a) a small empty box (b) triangle, bar and arrows (c) a line lifted at a gap (d) triangle against a bar
13. 13.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
14. 14.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) voltmeter (c) battery (d) ammeter
15. 15.Which drawing is the symbol for a cell? (a) triangle, bar and arrows (b) a circle with M inside (c) a circle with a cross (d) one tall, one short bar
16. 16.Which drawing is the symbol for an LED? (a) a straight line (b) a circle with A inside (c) a circle with a cross (d) triangle, bar and arrows
17. 17.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) battery (c) wire (d) resistor
18. 18.True or false: a circle with a cross is the symbol for a voltmeter. (a) True (b) False
19. 19.True or false: a plain rectangle is the symbol for a wire. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) resistor (b) voltmeter (c) diode (d) battery
21. 21.Which drawing is the symbol for an ammeter? (a) a circle with M inside (b) triangle against a bar (c) a circle with A inside (d) a circle with a cross
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) ammeter (c) battery (d) capacitor
23. 23.Which drawing is the symbol for a junction? (a) a straight line (b) triangle, bar and arrows (c) a dot where wires meet (d) two equal parallel lines
24. 24.True or false: two equal parallel lines is the symbol for a wire. (a) True (b) False
25. 25.True or false: many long-short pairs is the symbol for a capacitor. (a) True (b) False
26. 26.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
27. 27.True or false: one tall, one short bar is the symbol for a bulb. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) junction (b) motor (c) ammeter (d) cell
29. 29.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) voltmeter (c) switch (d) capacitor
30. 30.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) resistor (b) LED (c) bulb (d) capacitor
31. 31.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) two or more cell symbols (c) one tall, one short bar (d) a small empty box
32. 32.True or false: a circle with V inside is the symbol for a diode. (a) True (b) False
33. 33.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) a circle with M inside (c) a line lifted at a gap (d) two equal parallel lines
34. 34.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) diode (b) bulb (c) switch (d) capacitor
35. 35.True or false: a circle with a cross is the symbol for an LED. (a) True (b) False
36. 36.Which drawing is the symbol for a motor? (a) a small empty box (b) a circle with V inside (c) triangle, bar and arrows (d) a circle with M inside
37. 37.True or false: a long and a short line is the symbol for an LED. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) junction (c) voltmeter (d) ammeter
39. 39.True or false: a circle with an X in it is the symbol for a cell. (a) False (b) True
40. 40.Which drawing is the symbol for a wire? (a) triangle against a bar (b) a circle with M inside (c) a straight line (d) a plain rectangle

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