How are electromagnetic waves produces by oscillating charges ? Draw a sketch of linearly polarized EM waves propagating in z-direction. Indicate the direction of oscillating electric and magnetic fields

Explanation

### Step-by-Step Solution

**Step 1: Understanding Electromagnetic Waves Produced by Oscillating Charges**
- When a charge is at rest, it produces an electric field around it.
- If the charge moves with constant velocity, it generates both an electric field and a magnetic field, but these fields remain constant in space.
- However, when a charge oscillates (moves back and forth) or accelerates, it creates changing electric and magnetic fields. These fields vary with both time and space.

**Step 2: Explanation of Electromagnetic Wave Generation**
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