The
magnetic field lines are used to visually describe the distribution
of the magnetic field around the magnet. For the following
statement,(
) is wrong.
A: Each
magnetic field line is a closed loop curve
B: No
two magnetic field lines can cross each other
C: The
length of the magnetic field line reflects the strength of the
magnetic field
D: The
tangential direction of any point on any of the magnetic lines is the
direction of the magnetic field at that point
magnetic field lines are used to visually describe the distribution
of the magnetic field around the magnet. For the following
statement,(
) is wrong.
A: Each
magnetic field line is a closed loop curve
B: No
two magnetic field lines can cross each other
C: The
length of the magnetic field line reflects the strength of the
magnetic field
D: The
tangential direction of any point on any of the magnetic lines is the
direction of the magnetic field at that point
举一反三
- 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 curl equation [img=154x44]1803a2a153c85f5.png[/img]shows that : A: The time-varying magnetic field can generate an electric field, in which the elecric field lines is closed around the magnetic field line. B: The time-varying magnetic field can generate a magneitc field, in which the magnetic field lines is closed around the electric field line. C: The magnetic field lines is closed themselves. D: Flux continuity
- 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
- The magnetic field lines are ( ) curves,The<br/>outer space magnetic field line of the permanent magnet is ( <br/>). <br/>A.close-loop/ A: ). <br/>close-loop/<br/>from B: pole<br/>open-loop/<br/>from C: pole<br/>close-loop/<br/>from D: pole to E: pole to F: pole to G: pole to H: pole<br/>open-loop/<br/>from I: pole
- Regarding the magnetism of the complex, the following statement is<br/>incorrect: ( ). A: The magnetism of complexes is one of the important properties of<br/>complexes B: If all substances are placed separately in a magnetic field, they can<br/>be divided into two groups according to their influence by the<br/>magnetic field: diamagnetic, paramagnetic, and ferromagnetic C: Ferromagnetism is a substance, which is strongly attracted by a<br/>magnetic field D: Most of substances are paramagnetic