Which outcome occurs when a thermoelectric generator (TEG) experiences an increased internal resistance?

💡 Explanation

When internal resistance increases in a TEG, joule heating increases because power dissipation is proportional to resistance, reducing net power output causing diminished efficiency. Therefore conversion efficiency decreases, rather than waste heat changing, Seebeck coefficient increasing, which require manipulating semiconductor's properties or hot side temperature, which involves thermal mass and power balance.

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