hiwar,
In your circuit configuration the load is the 1uf capacitor in parallel with any external load applied to the op-amp output. Remember, in the inverting amplifier configuration, the inverting input is held at virtual ground. The consequence of this is that the current through the capacitor current (which must be supplied by the op-amp output) is equal to C dv/dt. This is the same current that the op-amp output would have to supply if the capcitor were connected from the op-amp output to ground in a conventional amplifier circuit.
Regards,
Kral