Electric field outside a solenoid

1. The problem statement, all variables and given/known data

A solenoid has a radius of 2.10 cm and 1180 turns per meter. Over a certain time interval the current varies with time according to the expression I = 1.30t, where I is in amperes and t is in seconds. Calculate the electric field 4.65 cm from the axis of the solenoid

2. Relevant equations

3. The attempt at a solution

I have no idea where to start.

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