Question on: WAEC Physics - 2005

a chemical cell of internal resistance 1\(\Omega\) supplies electric current to an external resistor of resistance 3\(\Omega\). Calculate the efficiency of the cell
A
75%
B
50%
C
33%
D
25%
Ask EduPadi AI for a detailed answer
Correct Option: A
R = \(r_1 + R = 1 + 3 = 4\Omega\)

\(\frac{3}{4} \times \frac{100}{1} = 75\)%

Add your answer

Notice: Please post responsibly.

Please share this, thanks!

No responses