Question

a dc battery with an internal resistance 1 ohm is to be charged from a constant dc source of 220 V.The battery is to be charged fron its internal emf of 90 V to 122 V .the charging current to be remained constant at 10 A.the range of the duty cycle is.a)0.454 to 0.60 b)0.415 to 0.54 c)0.382 to 0.62 d)0.421 to 0.68

Answer 1

Explanation:

Ans) E=8V, internal resistance R1=0.5Ω

E=8V, internal resistance R1=0.5ΩV=120V, resistance R2=15.5Ω

E=8V, internal resistance R1=0.5ΩV=120V, resistance R2=15.5ΩEffective voltage V′=V−E=112 V

E=8V, internal resistance R1=0.5ΩV=120V, resistance R2=15.5ΩEffective voltage V′=V−E=112 VI=R1+R2V′=7 A

E=8V, internal resistance R1=0.5ΩV=120V, resistance R2=15.5ΩEffective voltage V′=V−E=112 VI=R1+R2V′=7 AVoltage across R1=IR1=3.5 V

E=8V, internal resistance R1=0.5ΩV=120V, resistance R2=15.5ΩEffective voltage V′=V−E=112 VI=R1+R2V′=7 AVoltage across R1=IR1=3.5 VTerminal voltage =8+3.5=11.5 V

E=8V, internal resistance R1=0.5ΩV=120V, resistance R2=15.5ΩEffective voltage V′=V−E=112 VI=R1+R2V′=7 AVoltage across R1=IR1=3.5 VTerminal voltage =8+3.5=11.5 VSeries resistor in the charging circuit limits the current drawn from the external source

Answer 2

Answer:

Explanation:

0.392 to 0 62