Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 156 · 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 an LED? (a) two or more cell symbols (b) many long-short pairs (c) a straight line (d) triangle, bar and arrows
2. 2.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) junction (b) battery (c) motor (d) capacitor
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) cell (c) bulb (d) resistor
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
5. 5.True or false: a small empty box is the symbol for a bulb. (a) True (b) False
6. 6.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
7. 7.True or false: a small empty box is the symbol for a switch. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) ammeter (b) voltmeter (c) LED (d) cell
9. 9.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
10. 10.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) quick and clear for all (d) to hide the circuit
11. 11.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) one tall, one short bar (c) a dot where wires meet (d) a circle with a cross
12. 12.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) LED (b) diode (c) switch (d) battery
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) motor (b) switch (c) bulb (d) LED
14. 14.Which drawing is the symbol for a cell? (a) many long-short pairs (b) triangle against a bar (c) two or more cell symbols (d) one tall, one short bar
15. 15.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) ammeter (b) battery (c) wire (d) bulb
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) voltmeter (c) cell (d) diode
17. 17.True or false: two equal parallel lines is the symbol for a bulb. (a) False (b) True
18. 18.True or false: two equal parallel lines is the symbol for a wire. (a) True (b) False
19. 19.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) ammeter (b) motor (c) LED (d) cell
20. 20.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
21. 21.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) voltmeter (b) switch (c) cell (d) resistor
22. 22.Which drawing is the symbol for a battery? (a) a plain rectangle (b) one tall, one short bar (c) a circle with a cross (d) many long-short pairs
23. 23.True or false: triangle against a bar is the symbol for an LED. (a) False (b) True
24. 24.Which drawing is the symbol for an ammeter? (a) a plain rectangle (b) a dot where wires meet (c) one tall, one short bar (d) a circle with A inside
25. 25.Which drawing is the symbol for a switch? (a) a long and a short line (b) triangle, bar and arrows (c) a circle with V inside (d) a line lifted at a gap
26. 26.Which drawing is the symbol for a resistor? (a) a line lifted at a gap (b) a circle with an X in it (c) a plain rectangle (d) two or more cell symbols
27. 27.Which drawing is the symbol for a wire? (a) a dot where wires meet (b) a straight line (c) two equal parallel lines (d) two or more cell symbols
28. 28.Which drawing is the symbol for a capacitor? (a) triangle, bar and arrows (b) two equal parallel lines (c) two or more cell symbols (d) a straight line
29. 29.True or false: a straight line is the symbol for a diode. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) cell (b) bulb (c) voltmeter (d) resistor
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) diode (b) cell (c) battery (d) motor
32. 32.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
33. 33.True or false: triangle, bar and arrows is the symbol for a switch. (a) False (b) True
34. 34.True or false: a circle with V inside is the symbol for a resistor. (a) False (b) True
35. 35.True or false: a small empty box is the symbol for a wire. (a) False (b) True
36. 36.True or false: a small empty box is the symbol for an ammeter. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) voltmeter (c) motor (d) junction
38. 38.Which drawing is the symbol for a motor? (a) a plain rectangle (b) a circle with M inside (c) two or more cell symbols (d) triangle against a bar
39. 39.Which drawing is the symbol for a battery? (a) two equal parallel lines (b) a small empty box (c) two or more cell symbols (d) triangle, bar and arrows
40. 40.True or false: one tall, one short bar is the symbol for a resistor. (a) True (b) False

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