Physics - Heat & Thermo Question with Solution | TestHub
PhysicsHeat & ThermoThermal ExpansionMedium2 minQB
PhysicsMediummultiple choice
On a hot day, a ceiling fan makes people feel cooler. Which statements are correct?
Options:(select one or more)
Answer:
B, C, D
Solution:
A fan does not cool the air (A false). It speeds evaporation from the skin (B), its motor dissipates a little heat (C), and in humid air evaporation is slow so the effect is smaller (D). Answer B, C, D.
Subject:PhysicsTopic:Heat & ThermoSubtopic:Thermal Expansion
⏱ 2mℹ️ Source: QB
Doubts & Discussion
Loading discussions...
