Home
Class 12
PHYSICS
A magnetic flux through a stationary loo...

A magnetic flux through a stationary loop with a resistance R varies during the time interval `tau` as `phi = at (tau-t)` What is the amount of heat generated in the loop during that time?

A

`(a^(2)tau^(3))/(4R)`

B

`(a^(2)tau^(3))/(3R)`

C

`(a^(2)tau^(3))/(6R)`

D

`(a^(2)tau^(3))/(2R)`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    AAKASH SERIES|Exercise EXERCISE - I (MAGNETIC FLUX, FARADAY.S LAW, LENZ.S LAW, AC GENERATOR)|26 Videos

  • ELECTROMAGNETIC INDUCTION

    AAKASH SERIES|Exercise EXERCISE - I (SELF AND MUTUAL INDUCTION)|16 Videos

  • ELECTROMAGNETIC INDUCTION

    AAKASH SERIES|Exercise EXERCISE-II|32 Videos

  • ELECTRIC FIELD AND POTENTIAL

    AAKASH SERIES|Exercise PROBLEMS (LEVEL-II)|32 Videos

  • ELECTROMAGNETIC WAVES

    AAKASH SERIES|Exercise EXERCISE -II|20 Videos

Similar Questions

Explore conceptually related problems

The charge flowing through a resistance R varies with time t as Q = at - bt^(2) , where a and b are positive constants. The total heat produced in R is:

If the flux of magnetic induction through each turn of a coil of resistance R and having N turns changes from phi_(1) to phi_(2) then the magnitude of the charge that passes through the coil is

The magnetic flux through a coil perpendicular to its plane is varying according to the relation phi_(B)= (5t^(3) +4t^(2) + 2t - 5) weber. Calculate the induced current through the coil at t = 2 second. The resistance of the coil is 5 Omega .

A cell of e.m.f E is connected to a resistance R_(1) for time t and the amount of heat generated in it is H. If the resistance R_(1) is replaced by another resistance R_(2) and is connected to the cell for the same time t, the amount of heat generated in R_(2) is 4H. Then the internal resistance of the cell is

A closed loop is held stationary in the magnetic field between the north and south poles of two permanent magnets held fixed. Can we hope to generate current in the loop by using very strong magnets? (b) A closed loop moves normal to the constant electric field between the plates of a large capacitor. Is a current induced in the loop (i) when it is wholly inside the region between the capacitor plates (ii) when it is partially outside the plates of the capacitor? The electric field is normal to the plane of the loop. (c) A rectangular loop and a circular loop are moving out of a uniform magnetic field region to a field-free region with a constant velocity v. In which loop do you expect the induced emf to be constant during the passage out of the field region? The field is normal to the loops.