If a coil of `40` turns and area `4.0 cm^(2)` is suddenly remove from a magnetic field, it is observed that a charge of `2.0xx10^(-4)C` flows into the coil. If the resistance of the coil is `80Omega`, the magnetic flux density in `Wb//m^(2)` is

If a coil of 40 turns and area 4.0 cm^2 is suddenly removed from a magnetic field, it is observed that a charge of 2.0xx10^(-4) C flows into the coil. If the resistance of the coil is 80 Omega the magnetic flux density in Wb//m^2 is

A coil of 1500 turns and mean area of 500 cm^2 is held perpendicular to a uniform magnetic field of induction 2 xx 10^(-4) T . The resistance of the coil is 40 ohms. When the coil is rotated through 180^@ in the magnetic field in 0.2 seconds the average electric current (in mA) induced is

In a coil of area 10cm^(2) and 10 turns, magnetic field is directed perpendicular to the plane and is changing at a rate of 10^(4)Ts^(-1) . The resistance of the coil is 20Omega . The current in the coil will be

A coil of 10 turns and area 4xx10^(-2)m^(2) is placed in a unifrom magnetic field of flux dencity 10^(-2)T .If it is removed completely in 0.5s ,then the induced in the coil is

A coil intercepts a magnetic flux of 0.2 xx 10^(-2) Wb in 0.1 s. What is the emf induced in the coil ?

A magnetic field of flux density 10 T acts normal to a cail of 50 turns having 100 cm ^(2) area. Find the emf induced, if the coil is removed from the magnetic field in 0.1 s.

One coil with 40 turns and 4 "cm"^2 area of cross-section is kept perpendicular to one uniform magnetic field of flux density B. When this loop is pulled out of magnetic field suddenly, 2 xx 10^(-4) C electric charge flows through it. If resistance of this coil is 80 Omega then B= ____ "Wb/m"^2 .