Semiconductor
with a current is placed in a magnetic field perpendicular to the
current and it induced electric field in the direction. This
phenomenon is known as the ______ .
with a current is placed in a magnetic field perpendicular to the
current and it induced electric field in the direction. This
phenomenon is known as the ______ .
举一反三
- 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
- 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
- In the free space, the magnetic strength of the magnetic field of infinite plane current (excluding the thickness of the plane current) is [img=14x24]1803b72d2d865c9.png[/img]=______. A: μ0i, whose direction is the same as the current B: μ0i/2, whose direction is the same as the current C: μ0i, whose direction is perpendicular to the current D: μ0i/2, whose direction is perpendicular to the current
- 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
- 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