Answer:
Current in the speaker will be 1.442 A
Step-by-step explanation:
We have given an audio amplifier of rms emf of 15 volt 
So emf of the audio amplifier 

Resistance of the amplifier 

We have to find the current 
From ohm's ;aw we know that V = IR , here I is current and R is resistance 
So 

I = 1.442 A
So current in the speaker will be 1.442 A