With a NPN transistor the load goes between Vcc (supply) and the collector, emitter to ground. Make sure there is a diode across the motor to absorb reverse voltage generated by to motor (cathode to Vcc, anode to collector of transistor.
With a NPN transistor the load goes between Vcc (supply) and the collector, emitter to ground. Make sure there is a diode across the motor to absorb reverse voltage generated by to motor (cathode to Vcc, anode to collector of transistor.