How can you charge a metal sphere negatively without touching it?

Explanation

To charge a metal sphere negatively without touching it, we can use the process of charging by induction. Here’s a step-by-step solution:

### Step 1: Prepare the Metal Sphere
Start with a neutral metal sphere. This means it has an equal number of positive and negative charges.

### Step 2: Connect the Sphere to the Ground
Connect the metal sphere to the ground using a conducting wire. This allows electrons to move between the sphere and the ground.

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