Answer:
The potential across the plates is 5.25 V
Step-by-step explanation:
Let us assume that the Electric field is E; Force is F; Unit charge is q, the Electric potential is V and distance is d.
Here E = 150 v/m and d = 3.5 cm = 0.035 m
Now we know that,
Electric Field E
----- [1]
----- [2]
![Electric potential V = (work)/(unit charge) = (W)/(q)](https://img.qammunity.org/2020/formulas/physics/middle-school/berksottryw3ervm3x05xb8n3j23js6w6z.png)
So,
![V = (W)/(q) = {F* d}{q}](https://img.qammunity.org/2020/formulas/physics/middle-school/43vexs6sxupo5sf29sauddr8x82tvco325.png)
![=>(F)/(q)* d = (E * d) = (150*0.035) V = 5.25V](https://img.qammunity.org/2020/formulas/physics/middle-school/10bcbaq8yaeq1rd2j3uy9vjuq7bublfa9t.png)
Thus, The potential across the plates is 5.25 V