First is melts then it expands next it gets cooler Finally it gains ener. Hope this helps you out.
Total internal reflection. Although I'm not 100%
The answer is B ! As in light bulb tungsten is working as resistor !
The answer is ...
28 km per hour
The force that pushes charges through a wire is called voltage. Electric
current is the movement of the electrons caused by potential difference. For example,
in a circuit, the electrons in the bulb will not move without the potential
difference or voltage. When there is voltage, electric current occurs because
there is a driving force for the electrons in the wire to move.
