The references for the voltage and current at the terminal of a circuit element are as shown in Fig. 1.6(d). The numerical values for v and i are 40 V

and -10 A. a) Calculate the power at the terminals and state whether the power is being absorbed or delivered by the element in the box. b) Given that the current is due to electron flow,state whether the electrons are entering or leav-ing terminal 2. c) Do the electrons gain or lose energy as they passthrough the element in the box?