AIIMS2008PhysicsAlternating Current
If frequency of (R-L ) circuit is (f ) then impedance will be
Options
- A( R^2+(2 f L)^2 )
- B(R^2+ (2 f^2 )^2 )
- C( (R^2+L f^2 ) )
- D(R^2+(2 f)^2 ).
Correct answer
A. ( R^2+(2 f L)^2 )
Step-by-step solution
Impedance of R L circuit is gathered Z= R^2+X_L^2 where X_L= L=2 f L Z= R^2+(2 f L)^2 gathered