AP EAPCET 3 Sep 2021 Shift 1 Paper

An ideal solenoid has 1000 turns per meter and 8cm radius. The current in it varies at a uniform rate of 0.02A⋅s−1. A circular coil of radius 2cm is placed inside the solenoid such that its axis coincides with that of the solenoid. Find the induced electric field at a point on the circumference of the coil and that at a point outside the solenoid at a distance of 12.8cm from its axis.