Why does water boil faster in a kettle then on the stove?

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SUMMARY

Water boils faster in an electric kettle than on a stove due to the efficiency of heat transfer. The heating element in an electric kettle is directly submerged in water, allowing nearly all the generated heat energy to be transferred to the water. In contrast, on a stove, heat is first transferred to the pot, and only a portion of that heat is then transferred to the water, resulting in slower boiling times.

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YukiYue
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This is probably a silly question, but it got me thinking. Why does water boil faster in an electric kettle then in a pot on a stove. Is it because a kettle can generate more heat energy? Anyone have any thoughts?
 
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The element in the kettle is surrounded by water - so pretty much all the energy goes into the water.
On a stove only some of the energy goes into the pan, and then only some of this heat goes into the water
 

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