Final answer:
The equivalent capacitance between the terminals x and y in the circuit is 7.0 pF.
Step-by-step explanation:
The equivalent capacitance between the terminals x and y in the circuit can be found by applying the formula for the equivalent capacitance of parallel capacitors. In this case, there are three capacitors connected in parallel, with values of 1.0 pF, 2.0 pF, and 4.0 pF. The formula for the equivalent capacitance of parallel capacitors is:
C = C1 + C2 + C3
By substituting the given values, we get:
C = 1.0 pF + 2.0 pF + 4.0 pF = 7.0 pF
Therefore, the equivalent capacitance between the terminals x and y in the circuit is 7.0 pF.