Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 958 · 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) voltmeter (b) junction (c) resistor (d) diode
2. 2.True or false: a circle with V inside is the symbol for a capacitor. (a) False (b) True
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
4. 4.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) junction (b) cell (c) ammeter (d) battery
5. 5.Which drawing is the symbol for a capacitor? (a) a circle with a cross (b) a circle with A inside (c) two equal parallel lines (d) a long and a short line
6. 6.Which drawing is the symbol for a motor? (a) a small empty box (b) a circle with a cross (c) a line lifted at a gap (d) a circle with M inside
7. 7.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) a circle with M inside (c) one tall, one short bar (d) a circle with a cross
8. 8.Which drawing is the symbol for a resistor? (a) a long and a short line (b) one tall, one short bar (c) a circle with M inside (d) a plain rectangle
9. 9.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) ammeter (b) diode (c) LED (d) motor
10. 10.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) ammeter (c) battery (d) switch
11. 11.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) junction (c) switch (d) bulb
12. 12.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) quick and clear for all (d) to make it colourful
13. 13.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) voltmeter (b) diode (c) LED (d) junction
14. 14.Which drawing is the symbol for an LED? (a) two or more cell symbols (b) one tall, one short bar (c) a small empty box (d) triangle, bar and arrows
15. 15.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a long and a short line (c) a small empty box (d) two or more cell symbols
16. 16.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
17. 17.Which drawing is the symbol for a cell? (a) a long and a short line (b) triangle against a bar (c) a small empty box (d) two or more cell symbols
18. 18.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
19. 19.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) cell (c) battery (d) ammeter
21. 21.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) voltmeter (b) ammeter (c) diode (d) battery
22. 22.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) one tall, one short bar (c) a plain rectangle (d) two or more cell symbols
23. 23.True or false: a dot where wires meet is the symbol for an LED. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) capacitor (b) resistor (c) ammeter (d) LED
25. 25.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) a line lifted at a gap (c) a long and a short line (d) a circle with A inside
26. 26.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
27. 27.True or false: a line lifted at a gap is the symbol for a bulb. (a) False (b) True
28. 28.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
29. 29.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as a straight line? (a) capacitor (b) bulb (c) wire (d) battery
31. 31.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) a straight line (c) a circle with a cross (d) two or more cell symbols
32. 32.True or false: a straight line is the symbol for a wire. (a) True (b) False
33. 33.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) junction (c) wire (d) diode
35. 35.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
36. 36.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a dot where wires meet (c) a circle with A inside (d) one tall, one short bar
37. 37.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) bulb (b) resistor (c) junction (d) voltmeter
38. 38.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) a long and a short line (c) a circle with M inside (d) many long-short pairs
39. 39.Which drawing is the symbol for a switch? (a) a circle with M inside (b) one tall, one short bar (c) triangle, bar and arrows (d) a line lifted at a gap
40. 40.True or false: a circle with a cross is the symbol for a switch. (a) False (b) True

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