Each ideal battery shown below is rated at 2500 mAh How long

Each ideal battery shown below is rated at 2500 mAh. How long will it take for them to become \"dead\"? 4 hours 2 hours 8 hours 16 hours

Power rating of 1 battery=(10x2500)/1000=25 Wh

Power rating of the bank=25x8=200 Wh

Power consumed by the resistor per second=(40x40)/32=50W

No. of hours=200/50=4 hours (Ans)

$Each ideal battery shown below is rated at 2500 mAh. How long will it take for them to become \$