## Fundamentals of Electrical Engineering

a.) $p=-20W$ delivered b.) $p= 36W$ absorbed (Negative sign indicates that it was delivered)
a.) use passive sign convention, flip sign on voltage to get current flowing into the + terminal $p = -10V * 2A = -20W$ (delivered) b.) use passive sign convention, change polarity of voltage source $p = 9V * 4A = 36 W$ ( absorbed)