Question

Do questions from the " More to know" section in class 10 science come in board exams?​

Answer 1

Obviously

you have to study from digests , textbooks , worksheets, sample papers , assignment

all of that

you have to study for boards

Answer 2

Explanation:

Why is the magnetic field strength greater inside a current-carrying loop of wire than about a straight section of wire? The magnetic field of each segment of wire in the loop, due to electrons moving in the wire, adds together inside the loop, thereby making the field become bunched-up.