- Home
- Standard 12
- Physics
7.Alternating Current
medium
An inductive circuit contains a resistance of $10 \,ohm$ and an inductance of $2.0\, henry$. If an ac voltage of $120 \,volt$ and frequency of $60\, Hz$ is applied to this circuit, the current in the circuit would be nearly......$amp$
A
$0.32$
B
$0.16$
C
$048 $
D
$0.80$
Solution
(b) $Z = \sqrt {{R^2} + X_L^2} $ $ = \sqrt {{{10}^2} + {{(2\pi \times 60 \times 2)}^2}} = 753.7$
$\therefore \,\,i = \frac{{120}}{{753.7}} = 0.159\,\,A$
Standard 12
Physics
