TS EAMCET 10-Sep-2020 Shift 2 Solved Paper

Two tangent galvanometers A & B have coils of radii 8 cm and 16 cm respectively and having resistance of 8 Ω each. They are connected in parallel with a cell of emf4V and negligible internal resistance. The deflections produced in the tangent galvanometers A and B are 30° and 60° respectively. If A has 2 turns, then B must have