Two conductors made of the same material are connected across the same potential difference. Conductor A has seven times the diameter and seven times the length of conductor B. What is the ratio of the power delivere

Complete question:

Two conductors made of the same material are connected across the same potential difference. Conductor A has seven times the diameter and seven times the length of conductor B. What is the ratio of the power delivered to A to power delivered to B.

The ratio of the power delivered to A to power delivered to B is 7 : 1

Explanation:

Cross sectional area of a wire is calculated as;

Resistance of a wire is calculated as;

Resistance in wire A;

Resistance in wire B;

Power delivered in wire;

Power delivered in wire A;

Power delivered in wire B;

Substitute in the value of R in Power delivered in wire A;

Substitute in the value of R in Power delivered in wire B;

Take the ratio of power delivered to A to power delivered to B;

The wires are made of the same material,

The wires are connected across the same potential;

wire A has seven times the diameter and seven times the length of wire B;

Therefore, the ratio of the power delivered to A to power delivered to B is

7 : 1

think about the oscillation of the toy shown in the video. when the toy is at the highest point of its motion, its velocity is zero and its acceleration is negative.