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A Block A block in the shape of a rectangularsolid has a cross-sectional area of 4.00cm2 across its width, a front-to-rear length of15.1 cm, and a resistance of 925 . Thematerial of which the block is made has 5.33 multiplied by 1022 conduction electrons/m3. A potential difference of 35.5 V is maintained between its front and rear faces.

a) What is the current in the block?
b) If the current density is uniform, what is its value?
c) What is the average or drift speed of the conduction electrons?
d) What is the magnitude of the electric field in the block?

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