A cube of edge length ℓ = 2.80 cm is positioned as shown in the figure below. A uniform magnetic field given by = (4.7 î + 4.0 ĵ + 3.0 ) T exists throughout the region.

A cube, whose edges are aligned with the 𝑥, 𝑦 and 𝑧 axes, has a side length 𝑠=1.82 m. The field is immersed in an electric field aligned with the 𝑧 axis. On the left and right faces, the field has a strength 714.76 N/C and 737.55 N/C, respectively. The field along the front and back faces has strengths 750.94 N/C and 756.65 N/C. The field at the bottom and top faces has strengths 951.48 N/C and 1080.39 N/C, respectively. What is the total charge enclosed by the cube?

What is the net flux of the uniform electric field through a cube of side 20 cm oriented so that its faces are parallel to the coordinate planes?

A long cylindrical wire (radius = 4 cm) carries a current of 22 A that is uniformly distributed over a cross-section of the wire. What is the magnitude of the magnetic field at a point that is 0.1 cm from the axis of the wire?

Net electric flux through a cube is the sum of fluxes through its six faces. Consider a cube as shown in figure,having sides of length L = 10.0 cm. The electric field is uniform, has a magnitude E = 4.00 × 103NC-1 and isparallel to the xy plane at an angle of 37o measured from the +x -axis towards the +y -axis.(i) Electric flux passing through surface S6 isa) -24 Nm2 C-1 b) 32 Nm2 C-1 c) -32 Nm2 C-1 d) 24 Nm2 C-1(ii) Electric flux passing through surface S1 isa) -32 Nm2 C-1 b) -24 Nm2 C-1 c) 32 Nm2 C-1 d) 24 Nm2 C-1(iii) The surfaces that have zero flux area) S2 and S4 b) S3 and S6 c) S1 and S2 d) S1 and S3(iv) The total net electric flux through all faces of the cube isa) 24 Nm2 C-1 b) 8 Nm2 C-1 c) -8 Nm2 C-1 d) zero30. Read the text carefully and answer the question.A transformer is essentially an a c. device. lt cannot work on d.c. It changes alternating voltages or currents.It does not affect the frequency of a.c. It is based on the phenomenon of mutual induction. A transformeressentially consists of two coils of insulated copper wire having a different number of turns and wound onthe same soft iron core.The number of turns in the primary and secondary coils of an ideal transformer are 2000 and 50 respectively.The primary coil is connected to the main supply of 120 V and secondary coil is connected to a bulb ofresistance 0.6 Ω.1. What will be the value of voltage across the secondary coil'?2. Find the value of the current in the bulb.3. What Will be the value of current in the primary coil'?ORCalculate the power in primary coi

A uniform magnetic field, B of strength 0.5T is directed at an angle of 30° to the plane of a rectangular copper coil of length 0.04m and width 0.05m. Determine the flux through the coil.