Statement I: An eletric lamp is connected in series with a long solenoid of copper with air core and then connected to an ac source. If an iron rod is inserted in the solenoid, the lamp will become dim.
Satement II: If an iron rod is inserted in the solenoid, the inductance of the solenoid increases.

Options

A. If both asseration and reason are true and reason is the correct explanation of assertion.
B. If both asseration and reason are true but reason is not the correct explanation of assertion.
C. If assertion is true but reason is false.
D. If assertion is false but reason is true.

Answer

A

Explanation

If inductance of solenoid increases, than reachtance of circuit too increase, than obviously current will decrease and light becomes dim.