Question

Enter an expression for the surface charge density σ in terms of the total charge and radius of the disk.

Answer 1

The surface charge density (σ) of a disk can be expressed in terms of the total charge (Q) and the radius (R) of the disk using the equation σ = Q / (4πR²).

Step-by-step explanation:

The surface charge density σ of a disk can be expressed in terms of the total charge Q and the radius R of the disk. Using the equation q = σ(4πR²), where q is the net charge on the disk, we can rearrange the equation to solve for σ. Dividing both sides by 4πR², we get σ = q / (4πR²).