Two batteries each of internal resistance 5 Ω and emf 10 V are connected in parallel. Find the equivalent resistance and emf for the system.
Answer & explanation
Correct answer: option 1
$R_{eq} = \frac{R}{2} = \frac{5}{2}\Omega$
$E_{eq} = \frac{E_1r_2 + E_2r_1}{r_1+r_2} = 10V $