Laptop batteries are rated in W • h, the product of the power (in W) that the battery can provide and the time (in h) that it can provide this power. For instance, a 50 W • h battery can provide 50 W for 1.0 h, 25 W for 2.0 h, and so on. A 10.8 V laptop battery is rated at 76 W • h. What is the total charge the battery can provide to the laptop before the battery is depleted?

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A: at node A∑I=0I1+I2-I3=0I3=I1+I2 according to guideline, only three sub questions are answered.

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Q: C R

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