Question

Giant electric eels can deliver a shock of 590 V with up to 1.0 A of current for a brief time. A snorkeler in salt water has a body resistance of about 770 Ω. A current of about 500 mA can cause heart fibrillation and death if it lasts too long.

A)What is the maximum power max a giant electric eel can deliver to its prey?

B)If the snorkeler is struck by the eel, what current will pass through her body?

C)Is this current large enough to be dangerous?

D)What power received does the snorkeler receive from the eel?

Answer 1

Step-by-step explanation:

Given:

U = 590 V

I = 1.0 A

R₁ = 770 Ω

I* = 500 mA = 0.5 A

_________________

P - ?

A)

Power:

P = U·I = 590·1.0 = 590 W

B)

Сurrent:

I₁ = U / R ₁ = 590 / 770 = 0.770 A = 770 mA

C)

This current is life-threatening!!!

I₁ > I* (700 mA > 500 mA)

D)

Energy received:

E = I₁²·R₁ = 0.770²· 770 ≈ 460 W