Answer : (B) The electric field is inversely proportional to the distance.
Explanation :
It is given that, the voltage across two oppositely charged parallel plates is kept constant.
We know that the electric field due to point charge is given by :
q is the charge.
r is the distance between two plates.
It is clear that, the electric field is directly proportional to the magnitude of charge and inversely proportional to the square of the distance between them.
So, the correct option is (B) " The electric field is inversely proportional to the distance".
Answer:
cal
Explanation:
= mass of ice = 100 g = 0.1 kg
= specific heat of ice = 0.5 cal/(kg°C)
= specific heat of water = 1 cal/(kg°C)
= Latent heat of fusion of ice = 80 J/g
= initial temperature of ice = - 20 °C
= final temperature of ice = 50 °C
Q = Heat gained
Heat gained is given as
cal