Question

What is the internal resistance of a voltage source if its terminal voltage drops by 2.00 V when the current supplied increases by 5.00 A?

a) 0.4 Ω
b) 0.5 Ω
c) 0.6 Ω
d) 0.8 Ω

Answer 1

The internal resistance of a voltage source can be calculated by dividing the change in terminal voltage by the change in current. In this case, the internal resistance is 0.4 Ω.

Step-by-step explanation:

The internal resistance of a voltage source can be calculated using the formula:

Internal Resistance = Change in Terminal Voltage / Change in Current

In this case, the terminal voltage drops by 2.00 V when the current supplied increases by 5.00 A.

So, the internal resistance would be:

Internal Resistance = 2.00 V / 5.00 A = 0.4 Ω

Therefore, option a) 0.4 Ω is the correct answer.