Question

2. The electrical resistance of a wire varies directly as its length and inversely as the square of its diameter. If a wire 30 meters long and 0.75 mm in diameter has a resistance of 25 ohms, find the length of a wire of the same material whose resistance and diameter are 30 ohms and 1.25 mm respectively a​

Answer 1

Answer:

please let

Step-by-step explanation:

222÷134+

455÷45

34÷46+

45×

4775677=

5577×5÷4

455÷43÷253

35÷5545

4544553

-÷+=565/6