If the magnetic field B through
a loop of wire is increasing, the
induced magnetic field will be
A: in
the same direction as B
B: in
the opposite direction as B
C: perpendicular
to B
D: at
an acute angle to B
E: there
is no induced magnetic field
a loop of wire is increasing, the
induced magnetic field will be
A: in
the same direction as B
B: in
the opposite direction as B
C: perpendicular
to B
D: at
an acute angle to B
E: there
is no induced magnetic field
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
- 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 ______ .
- (<br/>) can be determined by the left hand rule. A: The induced force on the moving charged particles in the magnetic<br/>field. B: The direction of the induced force on the moving charged particles in<br/>the magnetic field. C: The induced electromagneto motive force on the moving conductor in<br/>the magnetic field. D: The direction of the induced electro-motive force on the moving<br/>conductor in the 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
- 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