Topic 2b - domestic electricity ( 2. Power and energy transfer ) Flashcards
1
Q
what are electric appliances designed for
A
to transfer energy to components in a circuit when a current flows.
2
Q
formula for energy transferred linked with power
A
E = Pt
3
Q
formula for energy transferred linked with potential difference
A
E = QV q = charge v = potential difference
4
Q
2 formulas for power linking with current
A
P = IV P = I^2r
