Curioustab

Home » Electronics and Communication Engineering » Electromagnetic Field Theory

In a 100 turn coil, if the flux through each turn is (t3 - 2t)mWb, the magnitude of the induced emf in the coil at a time of 4 sec is

46 mV
56 mV
4.6 V
5.6 V

Correct Answer: 4.6 V

Explanation:

E = 100 (3t² - 2) ⟹ 100(46) ⟹ 4600 mV

⟹ 4.6 V.

← Previous Question Next Question→

More Questions from Electromagnetic Field Theory

Charge needed within a unit sphere centred at the origin for producing a potential field,
A wave is propagated in a waveguide at frequency of 9 GHz and separation is 2 cm between walls Calculate group velocity for dominant mode.
A hollow rectangular waveguide has dimensions a = 2b. Calculate the amount of attenuation, if the frequency is 3 GHz, and b = 1 cm.
A plane electromagnetic wave travels in dielectric medium of relative permittivity 9. Relative to free space, the velocity of propagation in the dielectric is
Find the noise factor for an antenna at 27°C with equivalent noise temperature 30°K
Refractive index of glass is 1.5. Find the wavelength of a beam of light with a frequency of 1014 Hz in glass. Assume velocity of light is 3 x 108 m/sec in vacuum.
A short circuited stub is shunt connected to a transmission line as shown in the figure is, if z0 = 500 ohms, the admittance y seen at the function of the stub and the transmission line is
Which of the following should dominant wave have?
The torque (in mm) acting on a circular current loop of radius 1 mm in the xy plane, connected at the origin and with current 0.1 A, flowing in the sense of increasing in a magnetic field is
Calculate the wave impedance for TM mode in rectangular waveguide for dominant mode at 3 GHz having

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion