Malla Reddy College of Engineering and Technology (MRCET)
Department of EEE ( 2017-18 )
Electrical Circuits EEE
Applying KCL to the circuit in figure (a) we can write: i = i1 + i2 + i3 + ….+ in......(1)
i = C1 (dv/dt) +C2 (dv/dt) + … + Cn dv/dt) = (C1 + C2 + … + Cn ) (dv/dt).............(2)
Similarly for the circuit in figure (b) we can write the governing equation as:
i = Ceq (dv/dt).............(3)
From the eq(2) and eq(3),we get
Ceq=C1+C2+....+Cn
Note: The equivalent capacitance of a circuit consisting of n capacitances C1 , CL2 ,….and Cn
connected in parallel is the sum of the individual capacitances.
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