For the circuit in the previous part, the current flowing in the wire between the positive terminal of the battery and the resis
1 answer:
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Refer to the diagram shown below.
Let x = distance of the base of the ladder from the base of the hill.
By definition,
sin(75°) = x/15
x = 75*cos(75°) = 3.882 ft
Answer:
The distance between the base of the hill and the base of the ladder is 3.9 ft (nearest tenth)
Let x = distance of the base of the ladder from the base of the hill.
By definition,
sin(75°) = x/15
x = 75*cos(75°) = 3.882 ft
Answer:
The distance between the base of the hill and the base of the ladder is 3.9 ft (nearest tenth)
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.
Answer:
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