Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 176 · 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: many long-short pairs is the symbol for a battery. (a) False (b) True
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
3. 3.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) diode (b) capacitor (c) motor (d) resistor
4. 4.True or false: a line lifted at a gap is the symbol for a wire. (a) True (b) False
5. 5.True or false: a circle with A inside is the symbol for a junction. (a) False (b) True
6. 6.Which drawing is the symbol for an LED? (a) a long and a short line (b) a small empty box (c) many long-short pairs (d) triangle, bar and arrows
7. 7.True or false: a straight line is the symbol for a wire. (a) False (b) True
8. 8.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) the shorter line (d) neither line
9. 9.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) resistor (c) diode (d) wire
10. 10.True or false: a circle with M inside is the symbol for a switch. (a) False (b) True
11. 11.Which drawing is the symbol for an ammeter? (a) a straight line (b) two or more cell symbols (c) a circle with A inside (d) a circle with a cross
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) motor (b) switch (c) ammeter (d) battery
13. 13.True or false: many long-short pairs is the symbol for a capacitor. (a) True (b) False
14. 14.✏️ 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
15. 15.True or false: two or more cell symbols is the symbol for a junction. (a) False (b) True
16. 16.True or false: a circle with M inside is the symbol for a junction. (a) True (b) False
17. 17.True or false: a straight line is the symbol for a battery. (a) True (b) False
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) cell (c) LED (d) switch
19. 19.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a plain rectangle (c) a long and a short line (d) a circle with V inside
20. 20.True or false: triangle against a bar is the symbol for a junction. (a) True (b) False
21. 21.Which drawing is the symbol for a motor? (a) a circle with M inside (b) many long-short pairs (c) two or more cell symbols (d) a plain rectangle
22. 22.True or false: one tall, one short bar is the symbol for a diode. (a) True (b) False
23. 23.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
24. 24.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
25. 25.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) ammeter (c) bulb (d) motor
26. 26.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) wire (c) resistor (d) ammeter
27. 27.True or false: a circle with A inside is the symbol for a switch. (a) True (b) False
28. 28.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) triangle against a bar (c) one tall, one short bar (d) a small empty box
29. 29.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) two equal parallel lines (c) a circle with V inside (d) a plain rectangle
30. 30.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) a dot where wires meet (c) a circle with an X in it (d) two equal parallel lines
31. 31.True or false: triangle against a bar is the symbol for a switch. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) diode (c) capacitor (d) cell
33. 33.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) resistor (b) cell (c) battery (d) LED
34. 34.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) voltmeter (b) motor (c) cell (d) resistor
35. 35.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) LED (c) motor (d) cell
36. 36.Which drawing is the symbol for a wire? (a) a line lifted at a gap (b) triangle against a bar (c) many long-short pairs (d) a straight line
37. 37.Which drawing is the symbol for a diode? (a) two or more cell symbols (b) a circle with a cross (c) triangle against a bar (d) a small empty box
38. 38.True or false: two equal parallel lines is the symbol for a cell. (a) True (b) False
39. 39.Which drawing is the symbol for a switch? (a) two equal parallel lines (b) a small empty box (c) a line lifted at a gap (d) two or more cell symbols
40. 40.True or false: a circle with an X in it is the symbol for an ammeter. (a) True (b) False

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