mje13009
Do a diode check between pins 1 and 2 and between pins 1 and 3 with a multimeter (pins numbered from left to right, looking at the transistor from the front). It should read 0.6V or 0.7V on both occasions. Also check there's no conduction between pins 2 and 3.
If that checks out, you can be pretty sure the transistor survived the experiment and you need to check the circuit for any faults which would cause too much current to flow through the transistor.
If the transistor shows shorts between the pins, it's broken and you still need to check the circuit for errors, because transistors rarely fail all by themselves.