might a financial panic have on the money multiplier and the money supply? Why?

The Fed (US central bank) has reduced the required reserve ratio (RR) to zero percent effective on March 26, 2020. Do you think the real-world money supply multiplier would become infinity? Why or why not? Explain your answer.

For a financial system, the reserve ratio is 10% and the Fed decides to buy $5 million worth of bonds from the public. If the public deposits this amount into transactions accounts, what happens to the money supply initially and directly? What is the potential change in lending capacity (money creation) for the banking system?

Assume that the bank makes these loans. What will the new balance sheet look like? By how much has the money supply increased or decreased? If the money multiplier is 5, how much money will ultimately be created by this event?