Question

in the following diagram ,if the potential difference across AB is 10v what is the reading shown by V2? how are the reading of V1 and V3 related? between V1 and V4 which reading is higher? explain your answer​

Answer 1

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Answer 2

Explanation:



Since all the resistances are in series equivalent resistances are

\(R_{eq}=R_1+R_2+R_3+R_4\)

\(R_{eq}=10+10+10+10\)

\(R_{eq}=40\ \Omega\)

Current through the circuit is

\(I=\frac{V}{R_{eq}}\)

\(I=\frac{10}{40}\)

\(I=0.25\ A\)

Reading of \(V_1\) and \(V_2\)

\(V_1=V_2=0.25\times 20\)

\(V_1=V_2=5\ V\)

Reading of \(V_3\) and \(V_4\)

\(V_4=V_3=0.25\times 10\)

\(V_4=V_3=2.5\ \Omega\)

Therefore \(V_1=2V_3\) and \(V_1\gt V_4\)