CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

In the given circuit, when key K is open, reading of ammeter is I. Now key K is closed then the correct statement is:

  1. If ε1>IR, reading of the ammeter is less than I
  2. If IR<ε1, reading of the ammeter is greater than I
  3. If ε1<2IR, reading of the ammeter will be zero
  4. Reading of ammeter will not change


Solution

The correct option is B If IR<ε1, reading of the ammeter is greater than I

I=ε22RIR=ε22

After closing ε2IRε1=0

I=ε2ε1R

ε1<IRε1<ε2/2I>I
 

flag
 Suggest corrections
thumbs-up
 
0 Upvotes


Similar questions
View More


People also searched for
View More



footer-image