Drug policy reform. Drug policy reform, also known as drug law reform, is any proposed changes to the way governments respond to the socio-cultural influence on perception of psychoactive substance use.
1 Voltage can be thought of as the driving force (although it is not really a force.) behind current. 2  Things like batteries are voltage sources. 3  The voltage across the terminals of a battery tends to stay pretty constant. 4  When you connect a device across the battery terminals a current flows through the device.
transformer-An electric device that changes voltage in direct proportion to currents and in inverse proportion to the ratio of the number of turns of primary and secondary windings. The input side of transformer is the primary side.