What current is flowing through the on/off switch?

  • Thread starter Thread starter persian52
  • Start date Start date
  • Tags Tags
    Current Switch
AI Thread Summary
The discussion centers on calculating the current flowing through an on/off switch in a circuit powered by a 20-volt battery. Participants are trying to determine the correct answer from multiple-choice options, with one user initially estimating a current of 0.38 amperes. Another user encourages showing the calculation process to verify the answer. The calculation involves combining resistances and applying Ohm's Law, leading to a confirmed current of 0.38 amperes. Accurate calculations are emphasized for clarity and correctness in electrical assessments.
persian52
Messages
13
Reaction score
0
What current is flowing through the on/off switch?

The circuit below is powered by a 20-volt battery. What current is flowing through the on/off switch (When it is on, as shown)?

o01beu.jpg


A. 0.23 amperes
B. 0.29 amperes
C. 0.32 amperes
D. 0.38 amperes


i tried myself i got a close answer to D. 0.38 amperes but i want to make sure thanks you! ☺
 
Physics news on Phys.org


Would you like to show how you got that?
 


mgb_phys said:
Would you like to show how you got that?

hmm u want me to tell u wat i got? because i got close to Question D. but i want to get the accurate answer.
 
Last edited:


persian52 said:
hmm u want me to tell u wat i got?
No, we want you to show your work.
 


1/16 + 1/20 = 0.1125

1/0.1125 + 24 +20 = 52.8

20v/52.8 = 0.38
 


Looks good! :smile:
 
Thread 'Voltmeter readings for this circuit with switches'

Thread 'Voltmeter readings for this circuit with switches'

TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
View full post »
Thread 'Struggling to make relation between elastic force and height'

Thread 'Struggling to make relation between elastic force and height'

Hello guys this is what I tried so far. I used the UTS to calculate the force it needs when the rope tears. My idea was to make a relationship/ function that would give me the force depending on height. Yeah i couldnt find a way to solve it. I also thought about how I could use hooks law (how it was given to me in my script) with the thought of instead of having two part of a rope id have one singular rope from the middle to the top where I could find the difference in height. But the...
View full post »

Similar threads

How do we obtain an ampere-hour rating given voltage and watt-hour?
Replies
4
Views
1K
Determining Current Direction in a Charging RC Circuit
Replies
1
Views
2K
EM fields and Current between 2 charged cylinders
Replies
10
Views
2K
Circuits and the percent change of current when the switch is closed
Replies
2
Views
2K
Current through circuit when switch is open
Replies
8
Views
5K
Why do the headlights on the car become dim when the car is starting?
Replies
4
Views
2K
Calculating Current Flow in a Short-Circuited Battery
Replies
3
Views
2K
Calculating the voltage across capacitors and resistors with switches
Replies
2
Views
795
Finding the Current Through a Resistor (Working With Parallel and Series)
Replies
3
Views
2K
Which circuit shows the correct connection and values?
Replies
4
Views
2K

Hot Threads

Recent Insights

Back
Top