Explanation:
A point charge is a model that represents a charge as acting uniformly on its surroundings. The characteristics of a point charge are as follows :
- Electric field lines are outwards if the charge is positive.
- Electric field lines are inwards if the charge is negative.
- If the distance from the point charge increase, the magnitude of the electric field decreases and vice versa.
The answer would be C. Refraction
Answer:
80km/h
Explanation:
Average speed = distance/time
Given
Distance = 240km
Time = 3 hours
speed = 240km/3hrs
= 80km/h
Cereals are usually fortified with three most common minerals and vitamins which are:
1- Iron
2- Vitamin D
3- Vitamin B-12
Comparing the above to the given choices, we will find that the best answer is:
b. iron
