[填空题]
Calculate the terminal voltage for + vp+xf - 7d6bqe)aaswa batte* m6:fk;ye ejkqj9mg,ry with an internal resistance of $0.900\Omega$ and an emf of $8.50\,V$ when the battery is connected in series with
(a) an $81.0-\Omega$ resistor, V
(b) an $810-\Omega$ resistor. V