Question 342: Electrostatics & Capacitance

Question

In the circuit shown, find C if the effective capacitance of the whole circuit is to be 0.5 $$\mu $$F. All values in the circuit are in $$\mu $$F.

Accepted Answer

From equs.
$${{{{7C} \over 3}} \over {{7 \over 3} + C}} = {1 \over 2}$$
$$ \Rightarrow $$  14 C $$=$$ 7 + 3 C
$$ \Rightarrow $$  C $$=$$ $${7 \over {11}}$$

Answer

$${6 \over 5}\mu F$$

Answer

$${7 \over 11}\mu F$$

Answer

4$$\mu $$F

Answer

$${7 \over 10}\mu F$$

Electrostatics & Capacitance

In the circuit shown, find C if the effective capacitance of the whole circuit is to be 0.5 $\mu F. All values in the circuit are in \mu $F.

Choose the correct answer: