A dead battery is charged by connecting it to the live battery of another car with jumper cables. Assume that V = 9 V and R = 0.80 Ù.
Determine the current in the starter.
Determine the current in the dead battery.
Type
A dead battery is charged by connecting - PHYSICS HELP? in google search and you'll find a question similar to this on July 17, 2011
good luck
To determine the current in the starter and the dead battery, we can use Ohm's Law, which states that the current (I) flowing through a circuit is equal to the voltage (V) divided by the resistance (R): I = V/R.
1. Determine the current in the starter:
Since we are given the voltage (V = 9V) and resistance (R = 0.80 Ω), we can calculate the current in the starter battery using Ohm's Law: I = V/R.
I = 9V / 0.80 Ω = 11.25 A
Therefore, the current in the starter is 11.25 A.
2. Determine the current in the dead battery:
The dead battery can be represented as a simple circuit with only its internal resistance. Let's assume the internal resistance of the dead battery is Rd. The current flowing through this circuit can be calculated using Ohm's Law: I = V/R.
I = 9V / Rd
The value of Rd is not provided, so we cannot determine the exact current flowing through the dead battery without this information. However, we can make some observations:
- If Rd is very high, close to infinity, the current flowing through the dead battery will be negligible.
- If Rd is very low, close to zero, the current flowing through the dead battery will be high.
Please note that in real-life scenarios, the actual current flowing through the dead battery will depend on various factors such as the capacity of the battery and the condition of its internal cells.
In summary, without knowing the internal resistance (Rd) of the dead battery, we cannot determine the exact current flowing through it.