Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 616 · 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) little stars (b) wavy lines (c) dotted circles (d) straight lines
2. 2.True or false: a circle with a cross is the symbol for a switch. (a) True (b) False
3. 3.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) cell (b) resistor (c) ammeter (d) wire
4. 4.True or false: triangle, bar and arrows is the symbol for a voltmeter. (a) False (b) True
5. 5.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the longer line (d) the shorter line
6. 6.Which drawing is the symbol for a switch? (a) a straight line (b) a small empty box (c) a line lifted at a gap (d) a plain rectangle
7. 7.Which drawing is the symbol for a resistor? (a) a line lifted at a gap (b) many long-short pairs (c) two equal parallel lines (d) a plain rectangle
8. 8.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) diode (c) junction (d) battery
9. 9.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a circle with A inside (c) a line lifted at a gap (d) a small empty box
10. 10.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) diode (b) junction (c) switch (d) ammeter
11. 11.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) two or more cell symbols (c) many long-short pairs (d) a circle with V inside
12. 12.True or false: many long-short pairs is the symbol for a switch. (a) True (b) False
13. 13.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) diode (c) battery (d) bulb
14. 14.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
15. 15.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a circle with an X in it (c) a small empty box (d) a circle with V inside
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) capacitor (b) junction (c) ammeter (d) motor
17. 17.✏️ 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
18. 18.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
19. 19.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) ammeter (b) diode (c) battery (d) switch
21. 21.True or false: a dot where wires meet is the symbol for a cell. (a) False (b) True
22. 22.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
23. 23.True or false: a circle with an X in it is the symbol for a resistor. (a) False (b) True
24. 24.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) bulb (c) diode (d) wire
25. 25.Which drawing is the symbol for a cell? (a) a plain rectangle (b) a circle with A inside (c) a dot where wires meet (d) a long and a short line
26. 26.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
27. 27.True or false: a circle with an X in it is the symbol for a battery. (a) False (b) True
28. 28.Which drawing is the symbol for a motor? (a) a dot where wires meet (b) triangle, bar and arrows (c) a circle with M inside (d) a circle with a cross
29. 29.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) capacitor (b) LED (c) motor (d) wire
30. 30.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
31. 31.Which drawing is the symbol for an ammeter? (a) two or more cell symbols (b) a circle with A inside (c) a long and a short line (d) many long-short pairs
32. 32.True or false: one tall, one short bar is the symbol for a switch. (a) False (b) True
33. 33.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a circle with a cross (c) triangle against a bar (d) one tall, one short bar
34. 34.Which drawing is the symbol for a voltmeter? (a) a dot where wires meet (b) a circle with A inside (c) a plain rectangle (d) a circle with V inside
35. 35.True or false: a small empty box is the symbol for an LED. (a) True (b) False
36. 36.Which drawing is the symbol for a junction? (a) a circle with A inside (b) a dot where wires meet (c) triangle, bar and arrows (d) a circle with V inside
37. 37.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) diode (b) switch (c) LED (d) resistor
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) wire (b) battery (c) switch (d) bulb
40. 40.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) motor (c) switch (d) capacitor

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