A conducting loop with area 0.15 m² and resistance 5.0 S lies in the x-y plane. A spatially uniform magnetic field points in the z-direction. The field varies with time according to B₂ = at²b, where a = 2.6 T/s² and b = 9.0 T. Part A Find the loop current when t = 2.0 s. Express your answer in amperes. 17 ΑΣΦΑΛΟ |I| = Submit Part B Request Answer Find the loop current when B₂ = 0. Express your answer in amperes. IVE ΑΣΦ |I| = ? ? A A

A loop of wire with radius r= 0.183 m is in a magnetic field of magnitude B as shown in the figure. The magnetic field is perpendicular to the plane of the loop. B changes from B1= 0.22 T to B2= 7.5 T in Δt = 7.5 s at a constant rate. (a)  Express the magnetic flux Φ going through a loop of radius r assuming a constant magnetic field B.  (b)  Express the change in the magnetic flux going through this loop, ΔΦ, in terms of B1, B2 and r.  (c) Express the magnitude of the average induced electric field, E, induced in the loop in terms of ΔΦ, r and Δt.

Each of the 10 turns of wire in a vertical, rectangular loop carries a current of 0.25 A. The loop has a height of 8.0 cm and a width of 15 cm. A horizontal magnetic field of magnitude 4.9×10^−2 T is oriented at an angle of θ=65° relative to the normal to the plane of the loop.

An electron enters a region of space containing a uniform 1.03 x 10-5 T magnetic field. Its speed is 101 m/s and it enters perpendicularly to the field. Under these conditions, the electron undergoes circular motion. Find the radius r of the electron's path and the frequency f of the motion. r= f = m Hz

An electron enters a region of space containing a uniform 2.73 x 10-³ T magnetic field. Its speed is 125 m/s and it enters perpendicularly to the field. Under these conditions, the electron undergoes circular motion. Find the radius r of the electron's path and the frequency f of the motion. r = m f = Hz

At a particular point on Earth, the magnitude of the Earth's magnetic field is 4.00 ✕ 10−5 T. At this point, the field through a small square loop is essentially uniform. The area of the loop is 30.0 cm2. What is the magnitude of the magnetic flux (in T · m2) through the loop when the loop is at the following orientations? (a) the magnetic field is perpendicular to the plane of the loop T · m2 (b) the magnetic field and the normal to the plane of the loop are at a 50.5° angle T · m2 (c) the magnetic field and the normal to the plane of the loop are at a 90.0° angle T · m2

A square wire loop (side length 1.5 m) is oriented so that it is perpendicular to an external magnetic field B, with half the area of the loop embedded in the field, as shown below. The loop contains a battery with a constant emf Eb = 7.2 V and a resistor R = 3.2 Ω. The external magnetic field is B(t) = [0.027 T − (0.56 T/s) t] î where î is out of the page. (a) Findtheemfproducedbyinductionintheloop. (b) Findthenetcurrentintheloopfromboththeinducedemfandthebattery. (c) What direction is the current in? (a) Findtheemfproducedbyinductionintheloop. (b) Findthenetcurrentintheloopfromboththeinducedemfandthebattery. (c) What direction is the current in? (a) Find the emf produced by induction in the loop. (b) Find the net current in the loop from both the induced emf and the battery. (c) What direction is the current in?

A 2.60N metal bar, 1.50 m long and having a resistance of 10 ohms, rests horizontally on conducting wires connecting it to the circuit. The bar is in a uniform magnetic field B = 1.6 T and is not attached to the wires in the circuit. What is the acceleration of the bar just after the 25.0 2 xS x switch is closed? 10.0 N3 X. 120.0 V