Arizona Drivers Permit Practice Exam Guide

What happens if you connect an 8-ohm speaker directly to a 70-volt amplifier output without a transformer?

The speaker will sound exceptionally clear The speaker will act as a microphone The amplifier will draw excessive current, likely damaging the amplifier, the speaker, or both The system will function normally but at a lower volume

Correct Answer:

The amplifier will draw excessive current, likely damaging the amplifier, the speaker, or both

Explanation:

An 8-ohm load on a 70V line causes a near short-circuit condition, pulling massive current that will blow fuses or destroy equipment.

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