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A minus sign is required to be placed before the right-hand side of the expression for emf induced just to indicate the phenomenon explained by Lenz.
True
True
See lessAn electromagnetic field is said to be Conservative when the divergence of the field is zero.
False
False
See lessBiot Savart’s law is a general modification of Ampere’s law.
True
True
See lessThe polarity of a solenoid can be determined by Cork Screw Rule.
False
False
See lessLines of force never intersect.
True
True
See lessThe direction of magnetic lines of force is from N-pole to S-pole.
True
True
See lessPoles of magnets cannot be separated.
True
True
See lessWhen the iron price is magnetized various molecules are forced into more definitive alignment.
True
True
See lessThe material commonly used for shielding or screening magnetism is brass.
True
True
See lessDuring the process of magnetization when all the magnetic dipoles of a magnetic material get oriented in one direction, the core is said to be grain oriented.
False
False
See less