NCERT Class XII Chapter
Moving Charges and Magnetism
Questions With Solutions
© examsnet.com
Question : 4
Total: 28
A horizontal overhead power line carries a current of 90 A in east to west direction. What is the magnitude and direction of the magnetic field due to the current 1.5 m below the line?
Solution:
The standard directions on the plane of paper can be different according to requirements.
The magnitude of magnetic field,
B =
10 − 7 ×
10 − 7
Direction of magnetic field can be observed by right hand palm rule and it is southward.
The magnitude of magnetic field,
B =
Direction of magnetic field can be observed by right hand palm rule and it is southward.
© examsnet.com
Go to Question: