Physics, 18.12.2019 07:31 rschaum08

Acircular coil of radius r = 5 cm and resistance r = 0.2 is placed in a uniform magnetic field perpendicular to the plane of the coil. the magnitude of the field changes with time according to b = 0.5 e-0.2t t. what is the magnitude of the current induced in the coil at the time t = 2 s? a circular coil of radius r = 5 cm and resistance r = 0.2 is placed in a uniform magnetic field perpendicular to the plane of the coil. the magnitude of the field changes with time according to b = 0.5 e-0.2t t. what is the magnitude of the current induced in the coil at the time t = 2 s? 1.3 ma 7.5 ma 2.6 ma 4.2 ma 9.2 ma

Answers: 3

Show answers

Another question on Physics

Physics, 22.06.2019 00:20

Suppose that an electromagnetic wave which is linearly polarized along the x−axis is propagating in vacuum along the z−axis. the wave is incident on a conductor which is placed at z > 0 region of the space. the conductor has conductivity σ, magnetic permeability µ and electric permittivity ε. (a) find the characteristic time for the free charge density which dissipates at the conductor. (b) write the maxwell equations and derive the wave equation for a plane wave propagating in a conductor. (c) find the attenuation distance at which the incident amplitude reduces to e ^−1 of its initial value. (d) find the electric and magnetic fields inside the conductor. 8 (e) find the power loss per area of the incident electromagnetic wave at the surface of conductor.

Answers: 1

Answer

Physics, 22.06.2019 02:00

Figure 9 on page 362 shows various motions of balls. the curved path followed by the yellow ball in b in picture b is result of a) inertia b) centripetal motion c) gravity and horizontal velocity d) linear motion

Answers: 3

Answer

Physics, 22.06.2019 12:30

An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5×103 j and the energy transferred thermally out is 99.4×103 j. there are 1.5×1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1→2 b. 2→3 c. 4→1 d. 1→2 and 4→1 e. none of the above

Answers: 3

Answer

Physics, 22.06.2019 15:30

Match each scenario to the form of energy it represents

Answers: 2

Answer

You know the right answer?

Acircular coil of radius r = 5 cm and resistance r = 0.2 is placed in a uniform magnetic field perpe...

Questions