What is the resistance of a load with a potential difference of 75 V and a current of 501 mA?

(a) 0.24v (b) 140.00v

Explanation:I= EMF/R+r= 12.6v/4.00+0.0790 =3.0890A

v=IR=3.0890*4.00=12.35v

V=EMF-v=12.6v-12.356=0.24v

hence potential difference across the headlight bulbs when they are the only load (V) =0.24volts.

(b) v=IR=35.0*4.00=140.00 volts

Hence the potential difference across the headlight bulbs when the starter motor is operated (V) = 140.00volts

0.19 m/s and 0.45 m/s

answerscientific theory;