Question 1[Maximum number: 2]The electric field strength E at a distance x from an isolated point charge Q is given by the equationE=Qx2bE=\frac{Q}{x^{2} b}E=x2bQwhere b is a constant.Use the units for E given in (b)(i) to determine the SI base units of b.SI base units of bShow Answerb=Q/X2E=As/m2kgmA−1 s−3\begin{aligned} b =Q / X^{2} E =\mathrm{As} / \mathrm{m}^{2} \mathrm{kgmA}^{-1} \mathrm{~s}^{-3} \end{aligned}b=Q/X2E=As/m2kgmA−1 s−3=A2 s4 kg−1 m−3=\mathrm{A}^{2} \mathrm{~s}^{4} \mathrm{~kg}^{-1} \mathrm{~m}^{-3}=A2 s4 kg−1 m−3Add to Test