A bookstore uses a Faraday cage to comply with credit card regulations.
Customers report that theircellular phones have no signal when they are in the bookstore.
Which of the following is the MOST likely cause?
A.
The Faraday cage is creating interference within the bookstore. B.
The Faraday cage prevents access by redirecting signals. C.
The Faraday cage is creating latency on the cellular network. D.
The Faraday cage is creating attenuation of the cellular network.
B.
A bookstore uses a Faraday cage to comply with credit card regulations.
Customers report that theircellular phones have no signal when they are in the bookstore.
Which of the following is the MOST likely cause?
A.
The Faraday cage is creating interference within the bookstore.
B.
The Faraday cage prevents access by redirecting signals.
C.
The Faraday cage is creating latency on the cellular network.
D.
The Faraday cage is creating attenuation of the cellular network.
B.
The most likely cause of the customers' cellular phones having no signal when they are in the bookstore is B. The Faraday cage prevents access by redirecting signals.
A Faraday cage is a conductive enclosure used to block electromagnetic fields, such as radio waves. It is often used to comply with credit card regulations that require a secure environment for credit card transactions. However, one side effect of a Faraday cage is that it can block cellular signals.
When a cellular phone is in a Faraday cage, the electromagnetic waves emitted by the phone cannot pass through the conductive walls of the cage. The signals are redirected and prevented from reaching the outside world. This is why customers are reporting that they have no signal when they are in the bookstore.
Option A, the Faraday cage creating interference within the bookstore, is less likely to be the cause because the purpose of a Faraday cage is to block interference, not create it. Option C, the Faraday cage creating latency on the cellular network, is also less likely because latency is a delay in signal transmission, not a complete loss of signal. Finally, option D, the Faraday cage creating attenuation of the cellular network, is incorrect because attenuation refers to a weakening of the signal, not a complete loss of signal.
In conclusion, the most likely cause of the customers' cellular phones having no signal when they are in the bookstore is the Faraday cage preventing access by redirecting signals.