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An amplifier can produce 75 watts of power if needed. You set the amplifier thus that it is producing a voltage of 10V across an8Ω speaker to listen to music.
1. Under the above conditions, what is the current in the loudspeaker?
2. How much power is the amplifier producing under these conditions?
3. How many 8Ω loudspeakers could you connect across the first loudspeaker before you ruin it?
4. If you maintain a voltage of 10V from the amplifier, what happens to the current coming from the amplifier if a second loudspeaker is connected in parallel across the first loudspeaker?
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