Some heat is developed in a uniform metallic wire across the ends of which a constant voltage V is applied. The heat developed will be tripled if |
the radius of the wire is tripled the length of the wire is tripled both the radius and the length of the wire are reduced to one-third both the radius and the length of the wire are tripled |
both the radius and the length of the wire are tripled |
The correct answer is Option (4) → both the radius and the length of the wire are tripled |