Consider an electronic device, say wifi dongle. it is inside a wooden box. It may be a) powered up or b) without any power supply.
Is it possible to damage it to render it dysfunctional without damaging the box?
I believe this can be done using 1)Electromagnetic waves, 2) Static electric field and 3) Oscillating electric field.
Let us consider these options one by one. 1) Powerful em waves will induce large electric fields in the antenna and conductors. This may damage the subsequent electronics. What power and frequency is enough for the purpose? 2) Static electric field should induce voltage ascross conductors, resulting in damage. Is this correct? What field stregth is enough? 4) Oscillating electric field should be more effective than static one. What field strength and frequency are enough?