Question. A conducting square frame of side 'a' and a long straight wire carrying current I are located in the same plane as shown in the figure. The frame moves to the right with a constant velocity ‘V . The emf induced in the frame will be proportional to(a)1/(2x + a)2(b)1...
The direction of the magnetic field around a straight current-carrying wire is given by which rule? A. Left-hand rule B. Right-hand rule C. Fleming's left-hand rule D. Fleming's right-hand rule 相关知识点: 试题来源: 解析 B。本题考查磁学中的定则。右手定则用于判断直导线周围磁场的方向...
Charged Particle Dynamics in the Magnetic Field of a Long Straight Current-Carrying Wire.The article discusses the concept behind motion of a charged particle in a non-uniform filed of a wire carrying current. Topics discussed include possible types of motion in a current carrying field, vector ...
The magnetic field around a straight current - carrying wire is in the shape of _. A. circles B. squares C. triangles D. rectangles 相关知识点: 试题来源: 解析 A。解析:载流直导线周围的磁场形状是圆形的。B、C、D选项中的形状不符合载流直导线周围磁场的形状特征。
A long straight wire carrying a current of2.74A moves with a constant speedvto the right. A5turn circular coil of diameter 12.5cm,and resistance of3.25μΩ,lies stationary in the same plane as the straight wire. At so...
Lines of the magnetic field produced by a long straight wire carrying a current are: A. radially inward toward the wire B. radially outward from the wire C. circles that are concentric with the wire D. in the direction of the current ...
Magnetic fields arise from charges, similar to electric fields, but are different in that the charges must be moving. A long straight wire carrying a current is the simplest example of a moving charge that generates a magnetic field. The force a charge feels when moving through a magnetic ...
A straight wire 20 cm long, carrying a current of 4 A, is in a uniform magnetic field of 0.6 T. What is the force on the wire when it is at an angle of 30° with respect to the field? A. 0.2 N B. 0.3 N C. 0.4 N D. 0.5 N 如何将EXCEL生成题库手机刷题 如何制作自...
A long, straight, horizontal wire carries a left-to-right current of32A.If the wire is placed in a uniform magnetic field of magnitude4.5×10-5Tthat is directed vertically downward, what is the resultant magnitude of the magnetic field...
In the figure, a long straight wire carries a current i1=22.7 A and a rectangular loop carries current i2=23.8 A. Take a=0.812 cm,b= 6.43 cm, and L=34.0 cm. What is the magnitude of the net force on the loop due to i1 ? Number...