Testing Faults in Circuits w/ Continuity Testers & Light/Battery

In summary: Yes, by using Ohm's Law (V = IR), we can determine that the resistance of an individual bulb is 120 ohms (6V/0.05A).
  • #1
Kyleee
6
0
1. How could I test for faults in a circuit using a continuity tester containing a light and a battery?

2. If three lamps are rated 6v and 0.05A, what size of current will be drawn from the battery. Explain why this is. (Series circuit)

3. If three lamps are rated 6v and 0.05A, what size voltage must the battery be to allow them to operate properly? (Parallel circuit)



This is me trying to answer the questions. :D :

1. Would you just connect the "X" and "Y" wires to something for it to be tested?

2. I don't really get this one at all. Would it be 0.15A because there's three lamps and it's in a series circuit? How would I explain it though?

3. Since it's a parallel circuit and not a series, would the battery just have to be 6v? I know why, but I just don't know how to explain it, please help. :D


Edit : Also, is this a continuity tester using a bulb and a battery? :

dlDBQ.jpg
 
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  • #2
Why are people not helping me out?

I think this should be a pretty easy question to figure out for some of you.
 
  • #3
Kyleee said:
Why are people not helping me out?

I think this should be a pretty easy question to figure out for some of you.
Hello Kyleee. Welcome to PF!
Have some patience.

While you're waiting read to rules for this Forum. Please don't post the same question in more than one thread.
 
  • #4
SammyS said:
While you're waiting read to rules for this Forum. Please don't post the same question in more than one thread.
I didn't mean that, I don't even know how it happened. :P
 
  • #5
Kyleee said:
1. How could I test for faults in a circuit using a continuity tester containing a light and a battery?

2. If three lamps are rated 6v and 0.05A, what size of current will be drawn from the battery. Explain why this is. (Series circuit)

3. If three lamps are rated 6v and 0.05A, what size voltage must the battery be to allow them to operate properly? (Parallel circuit)

This is me trying to answer the questions. :D :

1. Would you just connect the "X" and "Y" wires to something for it to be tested?

2. I don't really get this one at all. Would it be 0.15A because there's three lamps and it's in a series circuit? How would I explain it though?

3. Since it's a parallel circuit and not a series, would the battery just have to be 6v? I know why, but I just don't know how to explain it, please help. :D


Edit : Also, is this a continuity tester using a bulb and a battery? :
For #1:
I don't see any X or Y wires in the figure.

Should you disconnect whatever you're testing from its power source before testing?​
For #2:
What voltage is used for the combination of the three light bulbs?

What is true of any current coming from the battery and then passing through the first bulb? Does it pass through any other bulbs before returning to the battery?​

For #3:
Yes, but it would be a good idea for you to try to explain it.​
 
  • #6
SammyS said:
What is true of any current coming from the battery and then passing through the first bulb? Does it pass through any other bulbs before returning to the battery?[/INDENT]
Yes, it passes through 3 bulbs. All three bulbs are rated 0.05A, 6v.

I've figured out the rest of the questions myself, this is the last one I've got to do. Then, after I've done my physics homework, I've got to go and study for a maths and geography test tomorrow, do 3 pages of french and write a bit of an essay and it's already 8:30pm.
*Face palm* Life is hard.
 
  • #7
What does the 0.05 A, 6V rating tell you about the bulb?
 
  • #8
vela said:
What does the 0.05 A, 6V rating tell you about the bulb?

It tells you that it's rated at a 0.05 current and 6 volts. I don't understand.
 
  • #9
Kyleee said:
It tells you that it's rated at a 0.05 current and 6 volts. I
From this, can you determine the resistance of an individual bulb?
 

Related to Testing Faults in Circuits w/ Continuity Testers & Light/Battery

1. What is a continuity tester and how does it work?

A continuity tester is an electrical device used to check if there is an uninterrupted electrical path between two points in a circuit. It works by sending a small electrical current through the circuit and detecting any breaks or interruptions in the flow of electricity.

2. Why is it important to test for faults in circuits?

Testing for faults in circuits is important because it helps to ensure the circuit is functioning properly and can prevent potential hazards such as electrical fires or equipment malfunctions. It also allows for any issues to be identified and addressed before they cause further problems.

3. How do you use a continuity tester to test for faults in a circuit?

To use a continuity tester, first turn off the power to the circuit and disconnect any power sources. Then, touch the two probes of the tester to the two points of the circuit you want to test. If the light on the tester lights up or there is a sound, it indicates there is continuity and no faults. If there is no light or sound, there is a break in the circuit and a fault is present.

4. Can a continuity tester be used on all types of circuits?

Yes, a continuity tester can be used on all types of circuits, including AC and DC circuits. However, it is important to make sure the tester is suitable for the voltage and type of circuit being tested.

5. Are there any safety precautions to take when using a continuity tester?

Yes, it is important to always turn off power to the circuit and disconnect any power sources before using a continuity tester. Additionally, make sure to wear appropriate protective gear, such as gloves and safety glasses, and follow the instructions provided by the manufacturer.

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