Some electric stoves use solid cast-iron plates that do not glow when they are hot.
Other stoves use ceramic glass hobs with heating elements underneath that glow bright red.
With both stoves, there is no air gap between the hob surface and a flat-bottomed metal pan placed on it.
Which statement is correct?
The cast-iron plate transfers energy by convection to the base of the pan.
The ceramic glass hob transfers energy by convection to the base of the pan.
The ceramic glass hob transfers less energy by radiation to the base of the pan than the cast-iron plate.
The cast-iron plate transfers energy by conduction to the base of the pan.
301 exam-style questions on CIE IGCSE Physics 2.3 Transfer of thermal energy, covering 2.3.1a Thermal conductors and thermal insulators, 2.3.1b Explaining thermal conduction, 2.3.2 Convection, 2.3.3a Thermal radiation, 2.3.3b Surface colour and texture, 2.3.3c Rate of emission and absorption of radiation, and 2.3.4 Consequences of thermal energy transfer. Each one has a worked solution and a mark scheme showing where the marks go.