Question

Two 2.2-cm-diameter-disks spaced 1.9 mm apart form a parallel-plate capacitor. The electric field between the disks is 4.9x10⁵ V/m.

What is the voltage across the capacitor?
Express your answer with the appropriate units.

Answer 1

The voltage across the capacitor with an electric field of 4.9x10⁵ V/m and a separation of 1.9 mm is 931 volts.

Step-by-step explanation:

To find the voltage across the capacitor, we can use the relationship between electric field (E), voltage (V), and separation distance (d), which is given by the equation V = E × d. The electric field between the disks is given as 4.9×10⁵ V/m, and the separation distance between the disks is 1.9 mm or 1.9×10⁳ m.

Substituting the values into the equation, we get:

V = (4.9×10⁵ V/m) × (1.9×10⁳ m)

V = 931 V

Therefore, the voltage across the capacitor is 931 volts.