By Saqib Iqbal Ahmed NEW YORK (Reuters) – The U.S. dollar rose against the euro on Friday, as investor unease about the potential economic fallout from Federal Reserve’s efforts to squash inflation bubbled to the surface, souring risk sentiment on Wall Street. The dollar rose 0.3% against the euro as U.S. stocks tumbled on Friday, putting the S&P 500 Index on the verge of confirming it has been in a bear market since hitting a record high in January. The session’s gains for the dollar, however, were not enough to erase sharp losses from earlier this week that have pulled the greenback away fro…