ElectroMagnetic InductionHard
Question
The flux linked with a coil at any instant ′t′ is given by
φ = 10t2 - 50t + 250
The induced emf at t = 3 s is
φ = 10t2 - 50t + 250
The induced emf at t = 3 s is
Options
A.190 V
B.-190 V
C.-10 V
D.10 V
More ElectroMagnetic Induction Questions
An aluminium ring B faces an electromagnet A. The current I through A can be altered. Then which of the following statem...When magnetic flux through a coil is changed, the variation of induced current in the coil with time is as shown in grap...A conducting ring of radius 1 meter is placed in an uniform magnetic field B of 0.01 tesla oscillating with frequency 10...An athelete runs at a velocity of 30 km/hr. towards east with a 3 meter rod. The horizontal component of the earth is 4 ...A conducting wire frame is placed in a magnetic field which is directed into the paper. The magnetic field is increasing...
= - (20 t - 50) = - 10 volt