Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 940 · 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 junction? (a) a circle with M inside (b) a circle with A inside (c) triangle against a bar (d) a dot where wires meet
2. 2.Which drawing is the symbol for a capacitor? (a) triangle against a bar (b) a dot where wires meet (c) two equal parallel lines (d) many long-short pairs
3. 3.Which drawing is the symbol for a diode? (a) a straight line (b) triangle against a bar (c) a circle with a cross (d) a small empty box
4. 4.Which drawing is the symbol for a wire? (a) a line lifted at a gap (b) a straight line (c) a dot where wires meet (d) a circle with an X in it
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) capacitor (c) diode (d) bulb
6. 6.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) resistor (b) bulb (c) junction (d) diode
7. 7.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) both lines (d) the shorter line
8. 8.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) two equal parallel lines (c) two or more cell symbols (d) a circle with A inside
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) cell (c) battery (d) motor
10. 10.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) motor (c) ammeter (d) wire
11. 11.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) symbols are heavier (d) to hide the circuit
12. 12.Which drawing is the symbol for a voltmeter? (a) one tall, one short bar (b) a small empty box (c) a circle with V inside (d) a line lifted at a gap
13. 13.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
14. 14.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
15. 15.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) ammeter (b) resistor (c) cell (d) switch
16. 16.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) battery (c) wire (d) cell
18. 18.Which drawing is the symbol for a resistor? (a) a line lifted at a gap (b) a plain rectangle (c) a circle with an X in it (d) a circle with M inside
19. 19.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) dotted circles (d) little stars
20. 20.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) motor (c) capacitor (d) LED
21. 21.Which drawing is the symbol for a battery? (a) a circle with A inside (b) many long-short pairs (c) one tall, one short bar (d) two equal parallel lines
22. 22.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with a cross (c) a line lifted at a gap (d) two equal parallel lines
23. 23.True or false: a straight line is the symbol for a motor. (a) True (b) False
24. 24.Which drawing is the symbol for a switch? (a) a plain rectangle (b) many long-short pairs (c) a line lifted at a gap (d) a small empty box
25. 25.True or false: a straight line is the symbol for a voltmeter. (a) True (b) False
26. 26.True or false: a straight line is the symbol for a diode. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) motor (c) battery (d) switch
28. 28.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) diode (c) ammeter (d) junction
29. 29.Which drawing is the symbol for an ammeter? (a) one tall, one short bar (b) a circle with V inside (c) a circle with A inside (d) a circle with a cross
30. 30.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) capacitor (c) junction (d) resistor
31. 31.True or false: many long-short pairs is the symbol for a voltmeter. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) switch (c) battery (d) junction
33. 33.Which drawing is the symbol for a cell? (a) a line lifted at a gap (b) a long and a short line (c) a dot where wires meet (d) two equal parallel lines
34. 34.True or false: a small empty box is the symbol for a motor. (a) True (b) False
35. 35.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
36. 36.True or false: one tall, one short bar is the symbol for an ammeter. (a) True (b) False
37. 37.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) wire (c) battery (d) cell
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) junction (c) ammeter (d) bulb
39. 39.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) bulb (c) capacitor (d) cell
40. 40.Which drawing is the symbol for a motor? (a) two equal parallel lines (b) a circle with M inside (c) a circle with A inside (d) triangle against a bar

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