For a position vector r = xî + yĵ + zk̂

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For a position vector r = xî + yĵ + zk̂ the norm of the vector can be defined as
| r | = √x² + y² + z² . Given a function Φ = In | r |, its gradient ∇Φ is

1. r
2. r
  | r |
3. r
  r.r
4. r
  | r |³

Correct Option: C

	r
	r.r