Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Physics Moving Charges and Magnetism The Magnetic Dipole Moment
The core of electromagnets are made of ferromagnetic material which has
1
high permeability and low retentivity
2
high permeability and high retentivity
3
low permeability and high retentivity
4
More than one of the above
5
None of the above