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).
Two conductors have net charges of Â±10 ÂµC and a potential difference of 10 V exists across the conductors. What are the capacitance of the system the potential difference that would be measured across the conductors if the charge on the conductors is increased to Â±100 ÂµC? Solution â The capacitance is given through the relation F F V C V q C 1 10 1Âµ 10 10 10 6 6 = Ã = Ã = = â â. Since the capacitance is a property of the arrangement of conductors it is a constant. Thus, if the charge is increased on the conductors, the new potential difference that would be measured is V F C C q q CV V new new new new 1 10 100 100 10 6 6 = Ã Ã = â = = â â