Subject :NSO Class : Class 7
The given diagram shows an electromagnet in which current is flowing. Which
of the following statements about the strength of the magnetic field at points P,
Q and R is correct?
magnetic strength is strongest at the poles and weakest in the centre
magnetic strength is strongest at the poles and weakest in the centre
Ans 1:
Class : Class 9
I probably thought that the answer would be stronger at p and r and weaker at q , because i used the sae concept as when it comes to permanent or natural magnet , but in elctromagnet , which i later found , it is totally opposite. The Poles are weakest and and at the center it is strongest