View Single Post
Minhtran1092
Minhtran1092 is offline
#1
Feb13-13, 02:14 PM
P: 21
I'm confused about the relationship between the voltages of different power sources. Since a car battery is more powerful than an adapter and both are known to have output of 12 Volts, what can be said about how much power is consumed by the devices running on 12V?

Will the same amount of current flow through a simple circuit which comprises a 5kΩ Resistor if you supply 12V from a car battery and if you supply 12V from the power adapter?
Phys.Org News Partner Physics news on Phys.org
Physicists design quantum switches which can be activated by single photons
'Dressed' laser aimed at clouds may be key to inducing rain, lightning
Higher-order nonlinear optical processes observed using the SACLA X-ray free-electron laser