1.

A 12 V lead accumulator is being charged using 24 V supply with an external resistance \[2\,\Omega \]. The internal resistance of the accumulator is\[1\,\Omega \]. Find the time in which it will store 360 W-hour energy.

A.            1 hr                                          
B.            7.5 hr
C.            10 hr                                        
D.            None of these
Answer» C.            10 hr                                        


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