Science

posted by ItsGottaGetEasier

So I need help with a lab, I'm not looking for answers, I want to know if my answers make sense, so this is the pre lab introduction:


In a series circuit, electrons travel along a single pathway. The movement of the
electrons through the circuit produces current. In a simple circuit, a battery can be
used as a source of electrons. Current increases as the voltage of the battery
increases. A 12-volt battery, for example, can push more electrons through a circuit
than a 9-volt battery.
The table below shows the effect that increasing voltage has on the brightness of a
light bulb.

Voltage (V) Light Bulb
1 No Light
4 Dim Light
12 Bright Light

Light bulbs and motors are called loads. Loads are sources of resistance. In a series
circuit, each electron must flow through consecutive resistors. If there are multiple
light bulbs connected in series, a single charge flowing through the circuit must
pass through all of the light bulbs. As the overall resistance in the circuit increases,
each light bulb shines a littler dimmer. This effect occurs because as the resistance
increases, the rate at which each electron flows through the circuit is reduced. It is
important to remember that as resistance increases, current decreases.
The table below shows how adding more resistance affects the current in a series
circuit that is supplied by a 10-volt battery.

Number Of Lightbulbs Total Resistance (Ω) Current (amps)
1 14.9 0.67
2 30.3 0.33
3 45.5 0.22
4 58.8 0.17


Use the tables to answer the following questions:
1. How does changing the voltage in a circuit affect the current in the circuit?

My answer:

I need help understanding this one

2. What is the impact of adding more light bulbs in series?

My Answer:
As you add more bulbs, the total resistance (Ω) increases and the Current (amps) decreases.

3. In the series circuit, is the current constant throughout the circuit, or does it
vary?

My answer:

The current is not constant throughout the circuit, it varies.

  1. bobpursley

    adding more lightbulbs will make them dimmer.
    the current in a series circuit is CONSTANT in each part of the circuit.

  2. ItsGottaGetEasier

    Wait are you sure bob?

  3. Writeacher

    Why would you not believe a man who taught math and sciences for years and has been tutoring in these subjects since 1995 or before?

  4. ItsGottaGetEasier

    I just meant according to the tables

Respond to this Question

First Name

Your Answer

Similar Questions

  1. Biology

    I really need help with my science lab. I was sick when we did the lab on Thursday and Friday was a snowday so I did not get to get the observations off my peers. My teacher has allowed people one more day and I do not understand this …
  2. SCIENCE

    Car headlight circuit - is this possible or do I need two separate circuit diagrams?
  3. Lab in general

    I just read my syllabus for lab and I am kind of shocked at what it says. I do know that I have to write out procedures of the lab in my nbk before coming to lab but I just read that it says "You will NOT be allowed to refer to you …
  4. Integrated Science.

    Hello there experts!Can you help me out with some of my questions?
  5. Chemistry Titration Lab HELP!

    Hi everyone! I just got a new lab that I MUST complete today, and it's about titration- I have absolutely no clue how to do it, it just doesn't make sense to me! I hope that someone can help explain to me how to do it so I can finish …
  6. physics

    A proper lifetime of a certain particle is 100.0ns. a) How long does it live in the lab frame if it moves at V=0.960c?
  7. physics

    A proper lifetime of a certain particle is 100.0ns. a) How long does it live in the lab frame if it moves at V=0.960c?
  8. science(check answers)

    1.D 2.A 3.A 4.im not sure please help 5.false One light bulb in a string of lights goes out. This causes all of the other lights in the string to also go out. This is an example of a A. resistor. B. parallel circuit. C. closed circuit. …
  9. Chemistry Lab

    In chemistry we are doing a lab that involves crucibles and Mg ribbon, we have three days to complete the lab. Anyways do you think it would be alright to substitute the mass of the crucible we had the first day with the mass of the …
  10. biology

    In a pre-lab for nutrient food testing , I was assigned to answer these questions, but I have no idea what they are talking about. And no, we have not discusses the answers in class. Here are the questions: Answer the following questions: …

More Similar Questions