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
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
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
- The Biot-Savart Law is used to（ ） A: determine the magnetic field created by an electric current B: determine the electric field created by an electric current C: determine the force field created by an electric current D: determine the magnetic field created by individual point charges E: determine the electric field created by individual point charges
- There is no magnetic field in an ideal conductor, but there is a magnetic field inside because of the surface current。
- 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
- It follows from Maxwell’s hypothesis(假设) that whenever there is a change in an electric field, a magnetic field is produced.