Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 787 · 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.True or false: a small empty box is the symbol for a junction. (a) True (b) False
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) both lines (d) neither line
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) capacitor (c) voltmeter (d) cell
4. 4.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) cell (b) diode (c) wire (d) resistor
5. 5.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) LED (c) cell (d) voltmeter
6. 6.Which drawing is the symbol for a resistor? (a) a circle with an X in it (b) a straight line (c) a circle with V inside (d) a plain rectangle
7. 7.Which drawing is the symbol for a voltmeter? (a) triangle against a bar (b) a circle with V inside (c) a circle with a cross (d) a circle with A inside
8. 8.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) straight lines (d) wavy lines
10. 10.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) triangle against a bar (c) one tall, one short bar (d) two or more cell symbols
11. 11.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) a circle with an X in it (c) a straight line (d) two equal parallel lines
12. 12.Which drawing is the symbol for an LED? (a) two or more cell symbols (b) triangle, bar and arrows (c) a circle with an X in it (d) triangle against a bar
13. 13.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) wire (c) capacitor (d) resistor
14. 14.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) resistor (c) voltmeter (d) diode
15. 15.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) switch (c) motor (d) capacitor
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) wire (c) ammeter (d) bulb
17. 17.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) a plain rectangle (c) two equal parallel lines (d) triangle, bar and arrows
18. 18.True or false: two or more cell symbols is the symbol for a capacitor. (a) False (b) True
19. 19.True or false: a circle with A inside is the symbol for a capacitor. (a) True (b) False
20. 20.True or false: two or more cell symbols is the symbol for an ammeter. (a) True (b) False
21. 21.Which drawing is the symbol for a battery? (a) a circle with a cross (b) a straight line (c) a plain rectangle (d) many long-short pairs
22. 22.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) diode (c) switch (d) junction
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) resistor (c) capacitor (d) voltmeter
24. 24.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) capacitor (c) battery (d) ammeter
25. 25.True or false: a plain rectangle is the symbol for an LED. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) ammeter (c) junction (d) diode
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) ammeter (b) resistor (c) diode (d) motor
28. 28.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) motor (b) LED (c) resistor (d) switch
29. 29.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
30. 30.Which drawing is the symbol for a cell? (a) a line lifted at a gap (b) two or more cell symbols (c) one tall, one short bar (d) a circle with A inside
31. 31.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) two or more cell symbols (c) a circle with an X in it (d) a plain rectangle
32. 32.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) wire (c) junction (d) LED
33. 33.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) to hide the circuit (d) quick and clear for all
34. 34.True or false: a straight line is the symbol for a wire. (a) False (b) True
35. 35.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
36. 36.Which drawing is the symbol for a switch? (a) a long and a short line (b) triangle, bar and arrows (c) one tall, one short bar (d) a line lifted at a gap
37. 37.True or false: a long and a short line is the symbol for a voltmeter. (a) True (b) False
38. 38.Which drawing is the symbol for an ammeter? (a) two or more cell symbols (b) a circle with an X in it (c) a circle with a cross (d) a circle with A inside
39. 39.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) bulb (b) cell (c) ammeter (d) voltmeter
40. 40.True or false: a line lifted at a gap is the symbol for a cell. (a) False (b) True

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