Final answer:
The magnitude of the current the eel can produce is approximately 0.0599 Amperes.
Step-by-step explanation:
The magnitude of the current the eel can produce can be determined using Ohm's Law. Ohm's Law states that the current flowing through a conductor is equal to the voltage across it divided by its resistance. In this case, the voltage is the sum of the emfs generated by each electroplaque, and the resistance is the sum of the internal resistance of each electroplaque and the resistance of the water.
To calculate the current, we first need to calculate the total emf by multiplying the emf of each electroplaque by the number of electroplaques. Then, we calculate the total resistance by summing the internal resistance of each electroplaque and the resistance of the water. Finally, we divide the total emf by the total resistance to get the magnitude of the current.
Let's perform the calculations:
- Number of electroplaques: 140 rows x 5000 electroplaques per row = 700,000 electroplaques
- Total emf: 700,000 electroplaques x 0.15 V = 105,000 V
- Total resistance: sum of internal resistance + resistance of water = (0.25 2 x 700,000) + 800 = 1,750,200
- Magnitude of the current: total emf / total resistance = 105,000 V / 1,750,200 = 0.0599 A
Therefore, the eel can produce a current of approximately 0.0599 Amperes in the water from near its head to near its tail.