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Ge solar cell with the junction saturation current Is = 10 nA generates a short-circuit photocurrent�Iph...

Ge solar cell with the junction saturation current Is = 10 nA generates a short-circuit photocurrent�Iph = 0.24 mA.

Find how many cells need to be connected in series to obtain the solar cell battery with the�total open-circuit voltage not less than Vb = 7 V.

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