Electric cars have been invented recently..They already have
achieved more than 180 miles per hour and have established world speed
records above 300 mph. Electric race cars have such a great capacity
for speed because they
utilize energy more efficiently than internal combustion engines.
Explanation is like this:
Turning gasoline into motion involves multiple steps that transfer motion from pistons to a crank shaft, to a flywheel, through a transmission and other mechanisms to finally reach the wheels. Each step consumes energy before it can become applied as motion, or torque, to the wheels. In an EV, in contrast, the conversion is more direct, from batteries to an electric motor that operates with negligible friction (electic motor still goes through a simplified gearbox and other mechanisms to the wheels). EV motors often provide up to 15,000 revolutions per minute (rpm), compared to less than 8,000 rpm for internal combustion engines (consumer cars usually provide less than 6,000). The high rpm of the electric motor eliminates the need for heavy and expensive transmissions.
Turning gasoline into motion involves multiple steps that transfer motion from pistons to a crank shaft, to a flywheel, through a transmission and other mechanisms to finally reach the wheels. Each step consumes energy before it can become applied as motion, or torque, to the wheels. In an EV, in contrast, the conversion is more direct, from batteries to an electric motor that operates with negligible friction (electic motor still goes through a simplified gearbox and other mechanisms to the wheels). EV motors often provide up to 15,000 revolutions per minute (rpm), compared to less than 8,000 rpm for internal combustion engines (consumer cars usually provide less than 6,000). The high rpm of the electric motor eliminates the need for heavy and expensive transmissions.
