What is the principle of candle make electricity?

Answer 1

Electricity can be generated directly from a candle in two ways:

• A candle can generate enough light for an up close photovoltaic cell to generate a small amount of electricity. Several of them in series or parallel around the same candle will generate more electricity (volts or amperes). Many photovoltaic cells are combined together as solar cells to generate electricity from sunlight.
• A candle can generate enough heat for a thermocouple to generate a small amount of electricity. Several of them in series or parallel around the same candle will generate more electricity (volts or amperes).

The flame could heat up water, which could turn into steam, the steam could turn a generator.

you cannot actually do it unless you use a flame which is a lot bigger and a far more powerful generator.

Answer 2

Candles themselves can generate very little electricity and, like coal, would have to be used to make steam from the heat of bulbs, which then might be used to make electricity. But it would be quite inefficient.

The best source of illuminating an electric light bulb is current from a source such as hydroelectric, oil, or coal power. In my opinion, hydroelectric or solar power are the best ways to generate electricity, as they do not pollute.

One of the early inventors working with electricity, Nikola Tesla, was able to show how electric light bulbs could be lit from current that runs through the ground, and even people. He was shut down by money and Propaganda from his rival, Thomas Edison, who wanted to profit from the invention, not allow people to get free electricity.

However, the strength of an electric light bulb is sometimes measured in "candlepower", that is, how many candles it would take to make the same light as a single electric bulb. Usually, however, these are given in "Watts".