Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 347 · 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) wavy lines (b) little stars (c) dotted circles (d) straight lines
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) resistor (c) LED (d) cell
4. 4.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to make it colourful (d) to hide the circuit
5. 5.True or false: two equal parallel lines is the symbol for a diode. (a) False (b) True
6. 6.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) switch (c) cell (d) ammeter
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) LED (b) switch (c) ammeter (d) bulb
8. 8.True or false: a dot where wires meet is the symbol for a voltmeter. (a) True (b) False
9. 9.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) motor (b) switch (c) voltmeter (d) LED
10. 10.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) resistor (c) switch (d) capacitor
11. 11.Which drawing is the symbol for a motor? (a) a circle with M inside (b) two or more cell symbols (c) one tall, one short bar (d) two equal parallel lines
12. 12.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) two equal parallel lines (c) a circle with V inside (d) a circle with a cross
13. 13.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
14. 14.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
15. 15.True or false: a small empty box is the symbol for an ammeter. (a) True (b) False
16. 16.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) motor (b) capacitor (c) junction (d) bulb
17. 17.True or false: a line lifted at a gap is the symbol for a cell. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) battery (c) switch (d) cell
19. 19.Which drawing is the symbol for a junction? (a) a circle with a cross (b) triangle, bar and arrows (c) a dot where wires meet (d) a straight line
20. 20.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) motor (b) wire (c) bulb (d) ammeter
22. 22.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) battery (b) junction (c) diode (d) ammeter
24. 24.Which drawing is the symbol for a capacitor? (a) a circle with a cross (b) a circle with M inside (c) two equal parallel lines (d) a line lifted at a gap
25. 25.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) motor (b) ammeter (c) resistor (d) wire
26. 26.Which drawing is the symbol for a diode? (a) triangle, bar and arrows (b) a circle with A inside (c) triangle against a bar (d) a circle with M inside
27. 27.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) cell (c) voltmeter (d) bulb
28. 28.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
29. 29.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
30. 30.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) wire (c) capacitor (d) resistor
32. 32.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) two or more cell symbols (c) a plain rectangle (d) many long-short pairs
33. 33.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a line lifted at a gap (c) a long and a short line (d) a plain rectangle
34. 34.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) LED (c) resistor (d) bulb
35. 35.True or false: a circle with an X in it is the symbol for a resistor. (a) True (b) False
36. 36.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a long and a short line (c) a circle with V inside (d) two equal parallel lines
37. 37.True or false: a straight line is the symbol for a wire. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) motor (b) battery (c) junction (d) cell
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) motor (c) bulb (d) junction
40. 40.True or false: two or more cell symbols is the symbol for a voltmeter. (a) True (b) False

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