Static friction is friction that occurs between two or more solid objects not moving in a relative fashion with each other.
Static friction is friction that occurs between two or more solid objects not moving in a relative fashion with each other.
The critical value is not the height of the dam itself but the height, or "head" of water inlet above the turbine. The higher the head the greater the pressure available, so provided it's also matched by sufficient flow the greater the power output. To illustrate the first point, a 30m high dam will produce the same power output from a given generating set level with its base, as a 5m high dam whose turbo-alternator is 25m lower in altitude down-valley - neglecting flow losses by fristion in the longer pipe-line. It's still 30m head even though the dam wall is far lower.
Static friction is friction that occurs between two or more solid objects not moving in a relative fashion with each other.
It is possible to generate electricity from a propeller shaft as the fristion waves travell across it, it will generate a minute amount. for it to generate better the inside needs to stripped out as most of them have card board in them to deaden sound
The critical value is not the height of the dam itself but the height, or "head" of water inlet above the turbine. The higher the head the greater the pressure available, so provided it's also matched by sufficient flow the greater the power output. To illustrate the first point, a 30m high dam will produce the same power output from a given generating set level with its base, as a 5m high dam whose turbo-alternator is 25m lower in altitude down-valley - neglecting flow losses by fristion in the longer pipe-line. It's still 30m head even though the dam wall is far lower.