In the circuit shown below, if the potential at point $A$ is taken to be zero, the potential at point $B$ is .............. $V$
Medium
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$\mathrm{V}_{\mathrm{B}}-\mathrm{V}_{\mathrm{A}}=\left(\mathrm{V}_{\mathrm{B}}-\mathrm{V}_{\mathrm{D}}\right)+\left(\mathrm{V}_{\mathrm{D}}-\mathrm{V}_{\mathrm{C}}\right)+\left(\mathrm{V}_{\mathrm{C}}-\mathrm{V}_{\mathrm{A}}\right)$
$=-2+2+1=+1$ $\mathrm{volt}$
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