Regarding the magnetism of the complex, the following statement is
incorrect: ( ).
A: The magnetism of complexes is one of the important properties of
complexes
B: If all substances are placed separately in a magnetic field, they can
be divided into two groups according to their influence by the
magnetic field: diamagnetic, paramagnetic, and ferromagnetic
C: Ferromagnetism is a substance, which is strongly attracted by a
magnetic field
D: Most of substances are paramagnetic
incorrect: ( ).
A: The magnetism of complexes is one of the important properties of
complexes
B: If all substances are placed separately in a magnetic field, they can
be divided into two groups according to their influence by the
magnetic field: diamagnetic, paramagnetic, and ferromagnetic
C: Ferromagnetism is a substance, which is strongly attracted by a
magnetic field
D: Most of substances are paramagnetic
举一反三
- The<br/>magnetic field lines are used to visually describe the distribution<br/>of the magnetic field around the magnet. For the following<br/>statement,( <br/>) is wrong. A: Each<br/>magnetic field line is a closed loop curve B: No<br/>two magnetic field lines can cross each other C: The<br/>length of the magnetic field line reflects the strength of the<br/>magnetic field D: The<br/>tangential direction of any point on any of the magnetic lines is the<br/>direction of the magnetic field at that point
- When the external magnetic field is removed, most or all of the magnetism of soft magnetic materials will not be lost, and the coercivity is very large.
- Semiconductor<br/>with a current is placed in a magnetic field perpendicular to the<br/>current and it induced electric field in the direction. This<br/>phenomenon is known as the ______ .
- If the magnetic field B through<br/>a loop of wire is increasing, the<br/>induced magnetic field will be A: in<br/>the same direction as B B: in<br/>the opposite direction as B C: perpendicular<br/>to B D: at<br/>an acute angle to B E: there<br/>is no induced magnetic field
- The<br/>Biot-Savart Law is used to A: determine<br/>the electric field created by individual point charges B: determine<br/>the electric field created by an electric current C: determine<br/>the magnetic field created by individual point charges D: determine<br/>the magnetic field created by an electric current E: determine<br/>the force field created by an electric current