A thin-film nichrome resistor in the form of a rectangle of dimensions 1 mm5 mm is deposited on to a glass substrate. Estimate the thickness of the film for the resistance measured between electrodes...

A thin-film nichrome resistor in the form of a rectangle of dimensions 1 mm5 mm is deposited on to a glass substrate. Estimate the thickness of the film for the resistance measured between electrodes contacting the 1 mm edges to be 1.0 kΩ. The resistivity of ‘nichrome’ may be taken to be 1:07 * 10-6 Ω m. Calculate the surface resistivity of the nichrome film