Physics - Current Electricity Question with Solution | TestHub

Current is a scaler quantity. On current accounting: $\begin{array}{rl}& I_{-}\{\text{in }\}=1\mathrm{A}+2\mathrm{A}+3\mathrm{A}+0.8\mathrm{A}=6.8\mathrm{A}\\ & {\mathrm{I}}_{\text{out }}=0.5\mathrm{A}+1.2\mathrm{A}+1.7\mathrm{A}=3.4\mathrm{A}\\ & \mathrm{I}={\mathrm{I}}_{\text{in }}-{\mathrm{I}}_{\text{out }}=3.4\mathrm{A}\end{array}$