A square conducting loop shown in figure below has sides of 0.25m. It is centered at origin with each of its sides parallel to x or y axis. a) Find the induced emf across a small gap created in the loop if magnetic field of B = 210t (T) is applied. And find the direction of the induced current in the loop X
Q: Ps: 0.212V is also wrong
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- a.) A conducting rod slides at a speed of 7.50 m/s along metal rails through a mag-netic field of 0.800 T, as shown. Find the emf induced in the rod. b) How strong is the force needed to keep the rod moving at the given speed, if the resis-tance of the circuit is a constant 1.50 Ω? The spacing between the rails is 0.500mA conducting bar sits on top of two parallel rails. A uniform magnetic field B is steady and directed to the right. The bar moves upward with velocity v. What is the polarity of the induced emf in terminals X and Y? X Y O X and Y are at the same potential. X is positive and Y is negative. O Y is positive and X is negative. 1-1Suppose a 50 turn coil lies in the plane of the page in a uniform magnetic field that is directed into the page. The coil originally has an area of 0.25 m2 . It is squished to have no area in 0.125 s. What is the magnitude of the average induced emf in volts if the uniform magnetic field has a strength of 1.5 T?
- A circular conducting loop with radius 2.80 cm is placed in a uniform magnetic field of 0.650 T with the plane of the coil perpendicular to the magnetic field as shown. Axis The magnetic field decreases to 0.190 T in a time interval of 28.0 ms. What is the average induced emf in the loop during this interval?The magnetic flux through the loop increases according to the relation shown below. What is the magnitude of the induced emf in the loop when t = 3.0 sHow much tension must a rope withstand if it is used to accelerate a 960 kg car horizontally along a frictionless surface at 1.20 m/s2?
- A wire loop with an area of 2.4×10−2 m2m2 is in a magnetic field of 0.40 TT directed at an angle 30∘ to the plane of the loop. If the field drops to zero in 41 ms , what is the average induced emf in the loop? Express your answer using two significant figures.A 1.95 m length of wire is held in an east-west direction and moves horizontally to the north with a speed of 14.8 m/s. The vertical component of Earth's magnetic field in this region is 40.0 µµT directed downward. Calculate the induced emf between the ends of the wire and determine which end is positive. magnitude mv positive end ---Select-- v Need Help? Read ItThe generator in the figure uses a loop that rotates with a period T. Suppose the rotation rate (i.e. frequency) is increased so that the loop is made to rotate twice as fast. How will that affect the magnitude of the induced emf? Area - A J Horseshoe magnet N The magnitude of the induced emf will increase by a factor of two. O The magnitude of the induced emf will decrease by a factor of two The magnitude of the induced emf will increase by a factor of four. O The magnitude of the induced emf will decrease by a factor of four. O The magnitude of the induced emf will not change.