Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Physics Current Electricity
Transformer is a device to convert-
1
Mechanical energy into Electrical energy
2
Low voltage A.C. into high voltage A.C.
3
Low voltage D.C. into high voltage D.C.
4
More than one of the above
5
None of the above