Question Number 14144 by tawa tawa last updated on 28/May/17
Answered by ajfour last updated on 28/May/17
$$\mathrm{69}.\:\:\:\:\:\:\boldsymbol{{I}}_{{b}} =\mathrm{30}{A}\:\:\:\:\:{direction}\:\left(−\boldsymbol{{z}}\right) \\ $$$$\mathrm{70}.\:\:\:\:\boldsymbol{{B}}_{\mathrm{0}} =\frac{\pi}{\mathrm{2}}×\mathrm{10}^{−\mathrm{7}} \:{T}\:. \\ $$
Commented by tawa tawa last updated on 28/May/17
$$\mathrm{please}\:\mathrm{sir}.\:\mathrm{Any}\:\mathrm{workings}\:? \\ $$