Electronics Worksheet: Series Circuits
Remember (One path for all): One path: if any bulb is removed or broken, no bulb glows. Identical bulbs share the voltage: each gets battery volts ÷ number of bulbs. More bulbs in series → each gets less → all glow dimmer.
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- 1.💡 A battery lights 3 identical bulbs joined in series. One more identical bulb is added in series. How do the bulbs glow now? (a) brighter (b) the same (c) dimmer
- 2.🔗 Series or parallel circuit: “many paths for current”? (a) parallel (b) series
- 3.💡 3 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 3 is taken out of its holder. How many bulbs glow?
- 4.🔗 Series or parallel circuit: “own switch for each bulb”? (a) series (b) parallel
- 5.💡 2 identical bulbs are joined in series with a 3 V battery (ideal wires). How many volts does each bulb get? =
- 6.💡 6 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 4 is taken out of its holder. Does bulb 1 glow? (a) No (b) Yes
- 7.True or false: “a break stops every bulb” is true of a series circuit. (a) False (b) True
- 8.🔗 Series or parallel circuit: “one out, the rest glow”? (a) series (b) parallel
- 9.True or false: “bulbs share the voltage” is true of a parallel circuit. (a) True (b) False
- 10.💡 A battery lights 2 identical bulbs joined in series. One more identical bulb is added in series. How do the bulbs glow now? (a) the same (b) dimmer (c) brighter
- 11.True or false: “one out, the rest glow” is true of a parallel circuit. (a) True (b) False
- 12.True or false: “own switch for each bulb” is true of a parallel circuit. (a) True (b) False
- 13.🔗 Series or parallel circuit: “each gets the full volts”? (a) parallel (b) series
- 14.True or false: “own switch for each bulb” is true of a series circuit. (a) False (b) True
- 15.💡 A battery lights 5 identical bulbs joined in series. One more identical bulb is added in series. How do the bulbs glow now? (a) the same (b) dimmer (c) brighter
- 16.💡 2 identical bulbs are joined in series with a 2 V battery (ideal wires). How many volts does each bulb get? =
- 17.💡 A battery lights 4 identical bulbs joined in series. One more identical bulb is added in series. How do the bulbs glow now? (a) brighter (b) dimmer (c) the same
- 18.🔗 Series or parallel circuit: “a single current path”? (a) parallel (b) series
- 19.True or false: “used in house wiring” is true of a series circuit. (a) True (b) False
- 20.True or false: “one bulb out, all go out” is true of a series circuit. (a) False (b) True
- 21.True or false: “each gets the full volts” is true of a series circuit. (a) False (b) True
- 22.💡 Old festival light strings went fully dark when one bulb failed. How were they joined? (a) in parallel (b) not joined (c) in series (d) by Wi-Fi
- 23.💡 2 identical bulbs are joined in series with an 8 V battery (ideal wires). How many volts does each bulb get? =
- 24.🔗 Series or parallel circuit: “bulbs share the voltage”? (a) series (b) parallel
- 25.💡 5 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 3 is taken out of its holder. Does bulb 1 glow? (a) Yes (b) No
- 26.💡 3 identical bulbs are joined in series with a 7.5 V battery (ideal wires). How many volts does each bulb get? =
- 27.💡 2 identical bulbs are joined in series with a battery and a closed switch on the main wire. All the bulbs are in place. Does bulb 1 glow? (a) Yes (b) No
- 28.💡 2 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 2 is taken out of its holder. Does bulb 1 glow? (a) Yes (b) No
- 29.🔗 Series or parallel circuit: “used in house wiring”? (a) series (b) parallel
- 30.True or false: “each gets the full volts” is true of a parallel circuit. (a) False (b) True
- 31.💡 In a series circuit, how many paths does the current have? (a) two (b) none (c) one for each bulb (d) one
- 32.💡 4 identical bulbs are joined in series with a 6 V battery (ideal wires). How many volts does each bulb get? =
- 33.💡 3 identical bulbs are joined in series with a 12 V battery (ideal wires). How many volts does each bulb get? =
- 34.💡 5 identical bulbs are joined in series with a 10 V battery (ideal wires). How many volts does each bulb get? =
- 35.💡 3 identical bulbs are joined in series with a battery and a closed switch on the main wire. All the bulbs are in place. Does bulb 3 glow? (a) Yes (b) No
- 36.🔗 Series or parallel circuit: “a break stops every bulb”? (a) parallel (b) series
- 37.💡 5 identical bulbs are joined in series with a battery and a closed switch on the main wire. All the bulbs are in place. Does bulb 2 glow? (a) No (b) Yes
- 38.True or false: “one out, the rest glow” is true of a series circuit. (a) False (b) True
- 39.True or false: “many paths for current” is true of a series circuit. (a) True (b) False
- 40.🔗 Series or parallel circuit: “one out, the rest glow”? (a) series (b) parallel
Answer key
- dimmer
- parallel
- 0
- parallel
- 1.5
- No
- True
- parallel
- False
- dimmer
- True
- True
- parallel
- False
- dimmer
- 1
- dimmer
- series
- False
- True
- False
- in series
- 4
- series
- No
- 2.5
- Yes
- No
- parallel
- True
- one
- 1.5
- 4
- 2
- Yes
- series
- Yes
- False
- False
- parallel
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