Jack’s car battery has died. The starter in his car requires a minimum of 1500W of power to start the engine, and it must draw a current of 200 A of when it does this. Jill has offered to jump start his car. Her car has a 12 V battery and she connects this to Jack’s car using a set of jumper cables. If the wire used in the jumper cables has a resistance of 0.02 Ω per 10 ft of cable, what is the longest set of jumper cables that Jill can use?
Jack’s car battery has died. The starter in his car requires a minimum of 1500W of...
A 12V car battery dies not so much because its voltage drops but
because chemical reactions increase its internal resistance. A good
battery connected with jumper cables can both start the engine and
recharge the dead battery. Consider the automotive circuit.a. How much current could the good battery alone drive through the starter motor? b. How much current is the dead battery alone able to drive through the starter motor? c. With the jumper cables attached, how much current passes through the...
A jumper cable is used to start a car that has a dead battery. The cable barely reaches the car and is outstretched in a straight line. The electric starter motor on the car draws 140 A . What is the magnetic field at a distance of 0.3 m from the cable?