a ampere in a sentence

1. In some linear applications, the spectral sensitivity may be expressed as a spectral responsivity, with units such as amperes per watt.
2. Meters which measured the amount of charge ( coulombs ) used, known as ampere-hour meters, were used in the early days of electrification.
3. The names of other researchers were applied to the details of the industries that would arise to manipulate the electron : names such as Ampere, Ohm, Volta and Watt.
4. It's difficult to find a ampere in a sentence.