Circuit with NTC/Voltmeter/Ammeter

  • #1

Homework Statement


1.JPG


Homework Equations




The Attempt at a Solution



Since resistance of the NTC falls we can say that the total resistance of the circuit has decreased so there is now more current in the circuit, so it's definitely answer B or D.

And since X's resistance has fallen, PD across X will decrease too (because even though current has increased, the drop in resistance is bigger than the increase in current??)

And since there is more current in the circuit, the pd of Y will increase??
 

Answers and Replies

  • #2
cnh1995
Homework Helper
Gold Member
3,444
1,144

Homework Statement


View attachment 111592

Homework Equations




The Attempt at a Solution



Since resistance of the NTC falls we can say that the total resistance of the circuit has decreased so there is now more current in the circuit, so it's definitely answer B or D.

And since X's resistance has fallen, PD across X will decrease too (because even though current has increased, the drop in resistance is bigger than the increase in current??)

And since there is more current in the circuit, the pd of Y will increase??
Right.
 
  • Like
Likes ravsterphysics

Related Threads on Circuit with NTC/Voltmeter/Ammeter

  • Last Post
Replies
8
Views
13K
Replies
1
Views
2K
  • Last Post
Replies
2
Views
8K
  • Last Post
Replies
4
Views
17K
  • Last Post
Replies
2
Views
5K
  • Last Post
Replies
5
Views
14K
  • Last Post
Replies
14
Views
21K
  • Last Post
Replies
11
Views
2K
Replies
3
Views
18K
Top