Question

In: Physics

A rectangular block of copper has sides of length 12 cm, 26 cm, and 37 cm....

A rectangular block of copper has sides of length 12 cm, 26 cm, and 37 cm. If the block is connected to a 5.4 V source across two of its opposite faces, find the following.

(a) What is the maximum current the block can carry?
(b) What is the minimum current the block can carry?

Solutions

Expert Solution

Given voltage,

Resstivity of copper,

Current*Resistance = Voltage

Voltage and resistivity are constants.

So Current will be maximum if the cross-sectional area is largest and length is the smallest

and current will be minimum if the cross-sectional area is smallest and length is the largest

(a) What is the maximum current the block can carry?

Length is the smallest and area is largest

Dimensions,

ANSWER:

===============================

(b) What is the minimum current the block can carry?

Length is the largest and area is smallest

Dimensions,

ANSWER:

===============================

genius_generous answered 1 year ago

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