A transistor is used in common-emitter mode in an amplifier circuit. When a signal of \( 10 \, \text{mV} \) is added to the base-emitter voltage, the base current changes by \( 10 \, \mu\text{A} \) and the collector current changes by \( 1.5 \, \text{mA} \). The load resistance is \( 5 \, \text{k}\Omega \). The voltage gain of the transistor will be ________.
