In a bank heist gone awry, you and a friend are stuck inside a (conducting) meta
ID: 1997626 • Letter: I
Question
In a bank heist gone awry, you and a friend are stuck inside a (conducting) metal bank vault. Somewhere completely inside the otherwise very solid metal door is a lock-release mechanism that will trip if you drill through it. This lock-release mechanism is a positively charged insulator. Can you and your friend figure out the right place to drill by measuring the electric field inside the safe? a) Yes (you could at least get close) b) No, you cannot locate the charge no matter how sensitive your E-field detection capabilities are c) Other/it depends Please explain your reasoning. Can your third accomplice, who is outside the safe, figure out where to drill by measuring the electric field outside the safe? a) Yes (you could at least get close) b) No, you cannot locate the charge no matter how sensitive your E-field detection capabilities are c) Other/it depends Please explain your reasoning.Explanation / Answer
Yes I can detect the right place to drill. Since the positive insulator is inside the metal door so there will be Electric field from the charged insulator. So If I can detect the place where e lectric field lines emerge from I can get the place to drill.
The third person cannot find the place to drill. Since electric field lines cannot travel through a metal conductor.