# Physics

posted by
**Tommy** on
.

1) Suppose that you wish to fabricate a uniform wire out of 1.15 g of copper. Assume the wire has a resistance R = 0.600 , and all of the copper is used.

(a) What will be the length of the wire?

m?

(b) What will be the diameter of the wire?

µm?

2) A rectangular block of copper has sides of length 5 cm, 18 cm, and 34 cm. If the block is connected to a 4.0 V source across two of its opposite faces of the rectangular block, what are the currents that the block can carry?

(a) the maximum current

A?

(b) the minimum current

A?