Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 274 · 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 motor? (a) a line lifted at a gap (b) a circle with M inside (c) one tall, one short bar (d) two or more cell symbols
2. 2.True or false: a dot where wires meet is the symbol for a switch. (a) True (b) False
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
4. 4.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) triangle, bar and arrows (c) a straight line (d) a line lifted at a gap
5. 5.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) two equal parallel lines (c) a small empty box (d) a circle with a cross
6. 6.Which drawing is the symbol for an ammeter? (a) triangle, bar and arrows (b) a straight line (c) a circle with A inside (d) many long-short pairs
7. 7.Which drawing is the symbol for a voltmeter? (a) one tall, one short bar (b) a circle with V inside (c) a circle with M inside (d) many long-short pairs
8. 8.Which drawing is the symbol for a wire? (a) many long-short pairs (b) a straight line (c) two equal parallel lines (d) one tall, one short bar
9. 9.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
10. 10.True or false: a plain rectangle is the symbol for a bulb. (a) True (b) False
11. 11.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) motor (c) wire (d) bulb
12. 12.True or false: a circle with A inside is the symbol for a switch. (a) False (b) True
13. 13.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) to hide the circuit (d) quick and clear for all
14. 14.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) triangle, bar and arrows (c) a small empty box (d) triangle against a bar
15. 15.True or false: a straight line is the symbol for a bulb. (a) True (b) False
16. 16.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
17. 17.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
18. 18.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) resistor (b) bulb (c) junction (d) battery
19. 19.True or false: a long and a short line is the symbol for a diode. (a) True (b) False
20. 20.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) diode (b) voltmeter (c) cell (d) LED
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) motor (b) diode (c) cell (d) bulb
22. 22.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) a circle with M inside (c) a plain rectangle (d) a circle with an X in it
23. 23.True or false: a long and a short line is the symbol for an LED. (a) True (b) False
24. 24.Which drawing is the symbol for an LED? (a) two or more cell symbols (b) a circle with M inside (c) a straight line (d) triangle, bar and arrows
25. 25.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) capacitor (b) junction (c) battery (d) motor
27. 27.True or false: a straight line is the symbol for a wire. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) switch (c) bulb (d) motor
29. 29.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) triangle, bar and arrows (c) two or more cell symbols (d) one tall, one short bar
30. 30.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) junction (b) cell (c) ammeter (d) LED
31. 31.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) resistor (c) diode (d) wire
32. 32.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) LED (c) resistor (d) wire
33. 33.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) ammeter (b) junction (c) cell (d) resistor
34. 34.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
35. 35.True or false: many long-short pairs is the symbol for a voltmeter. (a) False (b) True
36. 36.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
37. 37.True or false: a circle with a cross is the symbol for a voltmeter. (a) True (b) False
38. 38.Which drawing is the symbol for a switch? (a) two equal parallel lines (b) two or more cell symbols (c) a line lifted at a gap (d) a straight line
39. 39.Which drawing is the symbol for a diode? (a) a circle with M inside (b) triangle against a bar (c) a small empty box (d) a long and a short line
40. 40.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids