From the instant the voltage is applied, the rate of change of the voltage is high, and if it was to continue in a linear manner, then V C would reach its maximum value in a time equal to one time constant (T), where T (in seconds) is equal to C (in Farads) multiplied by R (in ohms), see fig 4.3.1. above.
4. Make your reception even bigger with a repeater or a wireless bridge. If your office is inconveniently far from your wireless access point, and you find yourself stretching to the edge of the room to get better reception, install a wireless signal repeater.
Find out in our essential guide to NFC, and how to use NFC on your smartphone to do useful things. We explain Near Field Communications technology. NFC-aka Near Field Communications-is a feature of many portable devices these days.o when you pop your smartphone into a Google Cardboard VR headset, it is the NFC chip that tells the headset to wake up. Staying in the future other potential uses for NFC include the ability to control devices around your home.