In the circuit element given here, if the potential at point `B = V_(B) = 0`, then the potentials of `A` and `D` are given as

Options

A. `V_(A) = - 1.5 V, V_(D) = + 2V`
B. `V_(A) = + 1.5 V, V_(D) = + 2V`
C. `V_(A) = + 1.5 V, V_(D) = + 0.5 V`
D. `V_(A) = + 1.5 V, V_(D) = - 0.5 V`

Answer

D

Explanation

(d) Potential difference between `A` and `B`
`V_(A) - V_(B) = 1 xx 1.5`
`implies V_(A) - 0 = 1.5 V implies V_(A) = 1.5 V`
Potential difference between `B` and `C`
`V_(B) - V_(C ) = 1 xx 2.5 = 2.5 V`