I would love to help! Where is the sentence to this question?
It reflects events leading up to the Russian Revolution & then into the Stalinist era of the Soviet Union. He wrote the manuscript in 1943 and 1944 subsequent to his experiences during the Spanish Civil War.
Sorry if this is a bit confusing
Given:
Potential difference between capacitor plates = 2.6 V
Dielectric constant of paper , K = 3.7
Solution:
When air is filled, let the potential difference between capacitor plate be V'
Now, after being disconnected from the battery, the charge stored in the capacitor will remain constant
And when dielectric is introduced between the capacitor plates, the potential difference will be reduced by k times a:
V = 
Therfore, V' = KV = 3.7 × 2.6 = 9.62 V
The resulting potential difference of the capacitor, V' = 9.62 V
C. In the afternoon, we walked together to the rehearsal hall
-"In" being the preposition.
Hope this helps!