Yes. The Raspberry Pi model B only requires around 500mA of current, and it's maximum consumption is around 800mA. The Pi will only take as much current from the power supply as it needs. The only problem that could occur is that if your power supply is faulty and does not give the voltage it should.

also, is this question a duplicate of https://raspberrypi.stackexchange.com/questions/268/can-i-feed-the-device-with-a-current-higher-than-1a?rq=1?