In a hall experiment a conducting strip of thickness d = 100 μm is placed in a magnetic field b = 0.05 t. the magnetic field is perpendicular to the direction of the strip along which there is a 10-a current. what is the hall voltage measured across the strip if the charge carrier density is 2.5 × 1028/m3 in this material?

1.25×10⁻⁶ V

Explanation:

The expression for the calculation of the hall voltage is shown below:

The charge of electron = 1.6×10⁻¹⁹ C

Given:

Density = 2.5×10²⁸ /m³

Thickness = 100 μm = 100×10⁻⁶ m = 10⁻⁴ m

B = 0.05 T

I = 10 A

Hall Voltage = 1.25×10⁻⁶ V

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.