Last weekend, Ms. Zhao, a citizen, showed her credit card to the cashier as usual when shopping and checking out in the supermarket, but she failed to swipe it several times on the POS machine. Due to lack of cash, Ms. Zhao had to cut back on her selected goods, which embarrassed her.

Ms. Zhao wondered why the credit card suddenly failed after being used for less than a month? In fact, Ms. Zhao's problem may be encountered occasionally by cardholders who rely too much on bank cards. The passbook was clearly left at home and no one used it. When I went to the bank to withdraw money, I was told that there was no magnetism and I had to "add magnetism"; Invite a friend to dinner, when it comes to swiping the card, the bank card somehow fails, and finally we have to settle the bill... These have brought great trouble to our life. As for the reason for the degaussing of the bank card, bankers explained that it was related to the cardholder's failure to place the card properly. Mobile phones, computers and other magnetic objects may magnetize bank cards.

Reminded by bankers, Ms. Zhao realized that the card "degaussing" was originally caused by mobile phones. It's easy to go shopping these days. She usually puts her credit card and mobile phone in her handy bag. They have "intimate contact" for several consecutive days. No wonder there's a problem. The customer service staff of a commercial bank explained that the information recorded in the bank card and passbook is stored on the magnetic strip on the back, and the strong magnetic field of the mobile phone will magnetize the credit card, making the recorded information disordered, resulting in the failure of the bank card.

In addition, if the magnetic strips of the two bank cards are overlapped, they are likely to be degaussed at the same time, so there is also attention to the safekeeping of the passbook lying at home. The magnetic buckle of women's handbag and some medical examination equipment such as nuclear magnetic resonance instrument will also cause the magnetization of bank cards. However, after the degaussing of the bank card, citizens can go to the Bank of deposit to replace one.

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