QUESTION 3 Why is it economical to use extremely high voltages for the transmission of electrical power? For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph Arial 10pt V ... * Qu E E X2 X2 X O + P 0 WC QUESTION 4 Calculate the power consumption of a 12-A heater operating at 120 V. QUESTION 5 A car's headlight consumes 55 W when on low beam and 68 W when on high beam. (a) Find the current that flows on low beam if V=12 Volts. QUESTION 6 A car's headlight consumes 55 W when on low beam and 68 W when on high beam. Find the current that flows on high beam if V=12 Volts. QUESTION 7 A car's headlight consumes 55 W when on low beam and 68 W when on high beam. Find the resistance when the headlight is on high beam. QUESTION 8 A certain electric motor draws a current of 10 A when connected to 120 V. (a) What is the motor's power consumption