How to Delete iPhone Favorites. 1  Tap the Phone app on the iPhone's home screen. 2  Tap the Favorites icon at the bottom left. 3  Tap the Edit button in the top left. 4  A red icon appears next to each favorite in the list. 5  Tap the red icon for the Favorite you want to delete. Tap the Phone app on your iPhone's home screen. 2  Tap the Favorites icon at the bottom left. 3  Tap the Edit button in the top left. 4  Tap and hold on the three-line icon at the far right of the person's name.
Potential difference with respect to electric field is called as the voltage. 3. Voltage is measured in Volts (V) and unit of measuring potential difference is changed with the type of the energy field (V for electric, J/kg for gravitational etc).
Coulombs per fortnight. :-) Electricity is measured in Volts and Amps. The voltage measures the potential energy to do work. The amperage measures the amount of current doing the work. For example, a water tank sitting in the air has an amount of pressure related to its height. That is the voltage.