Technically, it can't be all electrical activity that fails at Hogwarts as Brains and nervous systems in humans run on such things. So if it blanketed/scrambled all of the electrical activity into oblivion it would make anyone who entered the grounds pass out, have a seizure, or die. That means there must by some kind of exception to this field letting people live and function there.
Mr. Norris is as far as I can tell a normal cat. No enchantments or enhanced bit to it. (I could be wrong here, but I'm going with it for simplicity and lack of evidence otherwise.) So its not being inately magical that provides the protection verse neural dysfunction.
Unless I'm missing something the flying car wasn't exactly ripped from the future here and is the time frame is the early '90s... meaning that that car (disagree if you have the model and can prove otherwise) has rather little in the way of critical electronics. The starter and alternator and battery yes... but the battery like the one in Harry's watch should only be suspended from use until leaving the field. Most of the fancy computerized stuff wouldn't be around outside the really expensive models.
So while the headlights, radio, AC, and like secondary systems could go nuts... driving the vehicle shouldn't do more than turn off the engine or make it rev and the like. Also the fact it was propelled by enchantment and flying at the time, means that it wasn't only the electronics under attack.
Later the car shows signs of intelligence and even loyalty when it rescues the trio from the giant spiders. I vaguely remember its 'screaming' when it hit the field. Screaming means pain or metal fatigue.
So the car counts as 'alive' or independently functional... and it doesn't flicker anymore. So either all electronics are fried and it running on pure enchantment or it has control over those systems.
So if we take enchantment as a weak AI that keeps the magic doing what it was designed to do... then the reason the car stopped being tormented by the interference effect is that it was 'alive' enough to not be affected by the interference effect. Not totally unaffected and it seems to want to stay away from the grounds Hogwarts proper, and runs around in the forest. Perhaps getting too close to Hogwarts is like one of those electronic fences that keeps your dog on your lawn. Debatably, it stays in the forest, because it needs a level magic to remain continuos.
Anyway, so if blowing off the no electronics works here effect is a matter of the device having enough willpower, then devices like pacemakers (implanted in flesh) would continue to work. Meaning a T-100 terminator would only work better inside Hogwarts after the initial 'brain on fire' effect.
Continuing with this theory, if a laptop was active and on when entering Hogwarts it may become more intelligent, at least as far as performing its normal duties go, the car took owners where they wanted to go. If it was off it would never turn on, the interference effect suspending its functions.
Also, if the watch stops working for months and then works perfectly fine again... perhaps its my lack of heavy electronics background, but wouldn't all the interference drain the battery with random discharges? I know the battery will work for months or year normally... but unless its magically recharge though suspended, why does the battery still have power?
Mr. Norris is as far as I can tell a normal cat. No enchantments or enhanced bit to it. (I could be wrong here, but I'm going with it for simplicity and lack of evidence otherwise.) So its not being inately magical that provides the protection verse neural dysfunction.
Unless I'm missing something the flying car wasn't exactly ripped from the future here and is the time frame is the early '90s... meaning that that car (disagree if you have the model and can prove otherwise) has rather little in the way of critical electronics. The starter and alternator and battery yes... but the battery like the one in Harry's watch should only be suspended from use until leaving the field. Most of the fancy computerized stuff wouldn't be around outside the really expensive models.
So while the headlights, radio, AC, and like secondary systems could go nuts... driving the vehicle shouldn't do more than turn off the engine or make it rev and the like. Also the fact it was propelled by enchantment and flying at the time, means that it wasn't only the electronics under attack.
Later the car shows signs of intelligence and even loyalty when it rescues the trio from the giant spiders. I vaguely remember its 'screaming' when it hit the field. Screaming means pain or metal fatigue.
So the car counts as 'alive' or independently functional... and it doesn't flicker anymore. So either all electronics are fried and it running on pure enchantment or it has control over those systems.
So if we take enchantment as a weak AI that keeps the magic doing what it was designed to do... then the reason the car stopped being tormented by the interference effect is that it was 'alive' enough to not be affected by the interference effect. Not totally unaffected and it seems to want to stay away from the grounds Hogwarts proper, and runs around in the forest. Perhaps getting too close to Hogwarts is like one of those electronic fences that keeps your dog on your lawn. Debatably, it stays in the forest, because it needs a level magic to remain continuos.
Anyway, so if blowing off the no electronics works here effect is a matter of the device having enough willpower, then devices like pacemakers (implanted in flesh) would continue to work. Meaning a T-100 terminator would only work better inside Hogwarts after the initial 'brain on fire' effect.
Continuing with this theory, if a laptop was active and on when entering Hogwarts it may become more intelligent, at least as far as performing its normal duties go, the car took owners where they wanted to go. If it was off it would never turn on, the interference effect suspending its functions.
Also, if the watch stops working for months and then works perfectly fine again... perhaps its my lack of heavy electronics background, but wouldn't all the interference drain the battery with random discharges? I know the battery will work for months or year normally... but unless its magically recharge though suspended, why does the battery still have power?