First slide

Cell

Question

An energy source will supply a constant current into the load if its internal resistance is

Moderate

A

zero
B

non-zero but less than the resistance of the load
C

equal to the resistance of the load
D

very large as compared to the load resistance

Solution

$\begin{array}{l} I = \frac{ε}{r + R} \\ If r > > R, then \\ I = \frac{ε}{r} = constant \end{array}$

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