The force between two charged particle is given by, $${\text{F}} = \frac{1}{{4\pi {\varepsilon _0}}}\frac{{{{\text{Q}}_{\text{1}}}{{\text{Q}}_{\text{2}}}}}{{{{\text{r}}^2}}},$$    where the symbols have their usual meanings. The dimensions of ∈₀ in free space in SI system are:

A. 1 B. 0.84 C. 0.73 D. 0.65

A. Should be nonmagnetic B. Most be of low temperature coefficient C. Should have low specific resistance D. All of the above

A. The meter is calibrated for AC and it’s error for DC would be high B. The meter does not respond to DC signals C. The error is high due to hysteresis effect D. The error is high due to eddy current effect

A. A shunt resistance B. A series inductance C. Shunt capacitance D. Series resistance