A steady current of 2A flows in a coil of emf 12V for 0.4s. A back emf of 3V was induced during this period. The stored energy in the loop that can be utilized is

Similar Questions

The magnification produced with a converging lens is 5. If the object is a square wire gauze of side...

The maximum kinetic energy of the photoelectron emitted from a metal surface is 0.34eV. If the work ...

A block of wood of density 0.6 gcm$^{-3}$, weighing 3.06N in air, floats freely in a liquid of den...

A mercury-in-glass thermometer read 4cm at ice point and 29cm at steam point. Calculate the temperat...

In order to view the sun, the most suitable instrument to use is? ...

A transformer is required to give 120V from a 240V mains supply. If the primary has 5500 turns, how ...

If an object is placed at a height of tem above the ground at a stationary point. It posses what typ...

Under which of the following conditions do gases conduct electricity? ...

A uniform meter rule QR is balanced on a knife edge which is 55cm from R, when a mass of 10g is hung...

Three capacitors each of capacitance 1.5$\mu F$ are connected in series. The total capacitance in ...