Rubber doesn‘t conduct electricity, right? So how strong would the Amps have to be to destroy rubber? Would that be like 100?
actually it wouldn't be too hard you only need enough current so that the rubber melts from the thermal energy naturally lost by the circuit. Now if we're talking cross-linked rubber than that's going to be a hell of a job when in doubt just use 1000000 amps and everything will be fried
I think we don't need so high volt to melt a rubber.small volt of current can do the work.
That depends on how big the rubber is. Is it as big as a house or just a small strand? In general, the higher the resistance of a material, the less amps are required to destroy it. It's really power that will destroy the rubber, like let's say 1,000 watts would melt a certain piece of rubber. And power is determined by multiplying the applied voltage by the resulting amps flowing through the rubber. Since rubber is not a good conductor, it would require a very high voltage to force even a small amount of amps through the rubber. Let's say this particular piece of rubber had a resistance of 10 million ohms. To generate 1,000 watts of power (as heat) in the rubber to melt it, you would need to apply 100,000 volts to it, which would result in 1/100 of an amp. So , 100,000v x .01 A 1,000 watts. Let's take an opposite example. Let's say you wanted to destroy a small thin copper bar. And we know that a 1,000 watts of power would do the job of melting it. Since the resistance of copper is very low, we will get a large amount of amps for a very little applied voltage - just the opposite of rubber. So if the copper only had 1/1000 of an ohm of resistance, then applying 1 volt across it would result in 1,000 amps of current which would give 1v x 1,000A 1,000 watts. So in both cases, the same amount of power is used, but the voltage to current ratio is different. High resistance materials required a high voltage to current ratio to generate the same power level. A low resistance material requires a high current to voltage ratio to generate the same power. So high resistance has low current but high voltage, and low resistance has high current but low voltage. So it's just the voltage / current ratio that's different - the power level is the same because power Voltage x Amps.
