Grade 12th pass7 grade science
AssertionIn case of electric bell if AC power supply is used then its amplitude of the supply must be sufficiently high.ReasonDue to AC supply there will be continuous magnetization and demagnetization of the magnet
AssertionIn case of electric bell if AC power supply is used then its amplitude of the supply must be sufficiently high.ReasonDue to AC supply there will be continuous magnetization and demagnetization of the magnet
