Is energy required to be supplied for an artificial satellite to revolve in a given orbit?

Explanation

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks whether energy needs to be supplied for an artificial satellite to revolve in a given orbit.

2. **Concept of Orbits**: An artificial satellite is placed in orbit around a planet (like Earth) due to the gravitational force exerted by that planet. This gravitational force acts as the centripetal force needed to keep the satellite in its circular path.

3. **Energy in Orbits**: When a satellite is in orbit, it possesses gravitational potential energy due to its position in the gravitational field of the planet. This energy is crucial for maintaining its orbit.

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