To find the electric potential at the point (1m,2m), we begin with the given electric field and displacement vector: ‌E=(30
∧
i
+40
∧
j
)N∕C ‌d=(1
∧
i
+2
∧
j
)m The formula for electric potential V with respect to a chosen reference point is given by: V=−E⋅r Applying the formula, we compute the dot product: V=−(30
∧
i
+40
∧
j
)â‹…(1
∧
i
+2
∧
j
) Break it down as follows: V‌=−(30⋅1+40⋅2) V‌=−(30+80) V‌=−110V Thus, the electric potential at the point (1m,2m) is -110 V .