A metal ring $4\mathrm{.}20$ cmcm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. These magnets produce an initial uniform field of $1\mathrm{.}12$ TT between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at $0\mathrm{.}280$ T$/$sT$/$s$.$

Part A

What is the magnitude of the electric field induced in the ring?

Express your answer in volts per meter.

Activate to select the appropriates template from the following choices. Operate up and down arrow for selection and press enter to choose the input value typeActivate to select the appropriates symbol from the following choices. Operate up and down arrow for selection and press enter to choose the input value type