Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 441 · 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 a bulb? (a) one tall, one short bar (b) two or more cell symbols (c) a long and a short line (d) a circle with an X in it
2. 2.Which drawing is the symbol for an ammeter? (a) a circle with M inside (b) one tall, one short bar (c) a circle with A inside (d) two or more cell symbols
3. 3.✏️ 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
4. 4.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) wire (b) motor (c) diode (d) battery
5. 5.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) one tall, one short bar (c) a small empty box (d) a circle with an X in it
6. 6.True or false: a straight line is the symbol for a battery. (a) False (b) True
7. 7.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) a plain rectangle (c) a long and a short line (d) a circle with M inside
8. 8.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) motor (c) diode (d) junction
9. 9.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a line lifted at a gap (c) triangle against a bar (d) a circle with a cross
10. 10.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) junction (b) cell (c) capacitor (d) voltmeter
11. 11.Which drawing is the symbol for an LED? (a) two or more cell symbols (b) one tall, one short bar (c) triangle, bar and arrows (d) a small empty box
12. 12.True or false: a straight line is the symbol for a wire. (a) False (b) True
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) voltmeter (c) cell (d) battery
14. 14.True or false: two or more cell symbols is the symbol for a junction. (a) False (b) True
15. 15.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
16. 16.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
17. 17.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
18. 18.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) ammeter (c) wire (d) diode
19. 19.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) wire (c) resistor (d) junction
20. 20.True or false: two or more cell symbols is the symbol for a voltmeter. (a) True (b) False
21. 21.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) straight lines (d) dotted circles
22. 22.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) cell (c) battery (d) ammeter
23. 23.True or false: a small empty box is the symbol for a bulb. (a) False (b) True
24. 24.True or false: a long and a short line is the symbol for a switch. (a) False (b) True
25. 25.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
26. 26.Which drawing is the symbol for a motor? (a) triangle, bar and arrows (b) a circle with M inside (c) many long-short pairs (d) two equal parallel lines
27. 27.True or false: one tall, one short bar is the symbol for an ammeter. (a) False (b) True
28. 28.True or false: two equal parallel lines is the symbol for a bulb. (a) False (b) True
29. 29.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
30. 30.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a line lifted at a gap (c) a circle with A inside (d) a circle with V inside
31. 31.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) switch (b) voltmeter (c) battery (d) resistor
33. 33.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) battery (c) cell (d) LED
34. 34.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
35. 35.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) one tall, one short bar (c) a circle with an X in it (d) triangle against a bar
36. 36.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
37. 37.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) a circle with a cross (c) a line lifted at a gap (d) a circle with A inside
38. 38.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) motor (c) LED (d) resistor
39. 39.True or false: a circle with M inside is the symbol for a junction. (a) False (b) True
40. 40.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False

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