Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 137 · 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 cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) the shorter line (d) both lines
2. 2.True or false: many long-short pairs is the symbol for a cell. (a) False (b) True
3. 3.Which drawing is the symbol for a motor? (a) a plain rectangle (b) a line lifted at a gap (c) a circle with M inside (d) a circle with A inside
4. 4.True or false: a circle with V inside is the symbol for a junction. (a) True (b) False
5. 5.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
6. 6.✏️ 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
7. 7.Which drawing is the symbol for a wire? (a) a circle with A inside (b) a circle with M inside (c) a straight line (d) a long and a short line
8. 8.Which drawing is the symbol for a diode? (a) triangle against a bar (b) two or more cell symbols (c) a line lifted at a gap (d) a circle with A inside
9. 9.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) bulb (c) resistor (d) switch
10. 10.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) capacitor (b) LED (c) resistor (d) diode
11. 11.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) voltmeter (b) cell (c) LED (d) ammeter
12. 12.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) little stars (d) straight lines
13. 13.Which drawing is the symbol for a capacitor? (a) a line lifted at a gap (b) two equal parallel lines (c) a small empty box (d) two or more cell symbols
14. 14.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) two equal parallel lines (c) a line lifted at a gap (d) a small empty box
15. 15.Which drawing is the symbol for a battery? (a) two equal parallel lines (b) a circle with A inside (c) a dot where wires meet (d) many long-short pairs
16. 16.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) wire (b) battery (c) diode (d) LED
17. 17.Which drawing is the symbol for a voltmeter? (a) two equal parallel lines (b) a circle with V inside (c) a circle with M inside (d) a straight line
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) resistor (c) switch (d) bulb
19. 19.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) diode (c) cell (d) voltmeter
20. 20.True or false: two or more cell symbols is the symbol for a diode. (a) True (b) False
21. 21.True or false: a circle with M inside is the symbol for a diode. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) switch (c) LED (d) ammeter
23. 23.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) resistor (b) capacitor (c) junction (d) cell
24. 24.Which drawing is the symbol for an ammeter? (a) a small empty box (b) a long and a short line (c) a circle with a cross (d) a circle with A inside
25. 25.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
26. 26.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a long and a short line (c) a circle with an X in it (d) one tall, one short bar
27. 27.Which drawing is the symbol for a cell? (a) a straight line (b) triangle against a bar (c) a circle with A inside (d) a long and a short line
28. 28.True or false: many long-short pairs is the symbol for a junction. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) ammeter (b) wire (c) switch (d) battery
30. 30.True or false: triangle, bar and arrows is the symbol for a motor. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) resistor (c) voltmeter (d) junction
32. 32.Which drawing is the symbol for a junction? (a) triangle against a bar (b) two equal parallel lines (c) a dot where wires meet (d) a circle with V inside
33. 33.True or false: a plain rectangle is the symbol for a cell. (a) False (b) True
34. 34.True or false: a circle with V inside is the symbol for a bulb. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) motor (c) cell (d) voltmeter
36. 36.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) ammeter (c) junction (d) motor
37. 37.True or false: a circle with an X in it is the symbol for an ammeter. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) junction (b) diode (c) ammeter (d) resistor
39. 39.True or false: a straight line is the symbol for a resistor. (a) True (b) False
40. 40.Which drawing is the symbol for a bulb? (a) a long and a short line (b) many long-short pairs (c) a plain rectangle (d) a circle with a cross

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