Definition of central bank and explain its functions?

Answer 1

The purpose of a central bank is frame the rules and guidelines that must be followed by all banks that operate in that country. Their job is to oversee the operations of all banks and make sure that customer interest is protected by all means.

The Federal Reserve is the central bank in USA, Reserve Bank of India is the central bank of India.

Answer 2

A central bank, reserve bank, or monetary authority is a banking institution granted the exclusive privilege to lend a government its currency. Like a normal commercial bank, a central bank charges interest on the loans made to borrowers, primarily the government of whichever country the bank exists for, and to other commercial banks, typically as a 'lender of last resort'. However, a central bank is distinguished from a normal commercial bank because it has a monopoly on creating the currency of that nation, which is loaned to the government in the form of legal tender. It is a bank that can lend money to other banks in times of need. Its primary function is to provide the nation's money supply, but more active duties include controlling subsidized-loan interest rates, and acting as a lender of last resort to the banking sector during times of financial crisis (private banks often being integral to the national financial system). It may also have supervisory powers, to ensure that banks and other financial institutions do not behave recklessly or fraudulently.