Which of the following is the SI-derived unit for measuring electric conductance?
Siemens
The correct answer is Siemens.
This is often simpler than calculating the total resistance in parallel using the formula 1/R_{total} = 1/R_1 + 1/R_2 + 1/R_3 + .... Conductance is also related to the material properties through conductivity (\sigma). Conductance (G) of a uniform conductor is given by G = \sigma \frac{A}{L}, where A is the cross-sectional area and L is the length of the conductor. Conductivity (\sigma) is the reciprocal of resistivity (\rho), with units of Siemens per meter (S/m).
Which of the following is dimensionless?
The dimensional formula of force:
What is the formula of velocity gradient?
What is the SI unit for measuring the luminous intensity?