You measure the capacitance C₁ of a capacitor by doing the following: First connect capacitors C₁ and C₂ in series to a power supply that provides a voltage V that can be varied. The capacitance of С2 is known to be 3.00 μF. Then vary the applied voltage V, and for each value of V measure the voltage V₂ across C₂. After plotting your data as V₂ versus V, you find that the data fall close to a straight line that has slope 0.650.What is the capacitance C₁?