Skip to main content
MediumPhysics
+4 / -1
-- A uniform magnetic field is restricted within a region of radius r. The magnetic field changes with time at a rate dB/dt. Loop 1 of radius R > r enclosed the region of magnetic field having radius r and another loop 2 of radius R is outside the region of magnetic field as shown in the figure below. Then the e.m.f generated will be
A
Zero in loop 1 and zero in loop 2
B
-(dB/dt)πr^2 in loop 1 and -(dB/dt)πr^2 in loop 2
C
-(dB/dt)πr^2 in loop 1 and zero in loop 2
D
-(dB/dt)πR^2 in loop 1 and zero in loop 2
Previous

-- Two geometrically similar magnets having same mass but magnetic moments M1 an

Next

Two coils of self inductance L1 and L2 are placed near each other so that the to

More from PYQ2025
Easy

Which of the following is not the unit of length :

Medium

-- The speed of light in a medium is 1.5 × 10⁸ m/s. The critical angle for this medium with respect

Medium

The frequency of an electromagnetic wave in free space is 2 MHz. When it passes through a medium of

Easy

-- In a p-type semiconductor, the majority charge carriers are

Easy

-- The energy of an electron in nth orbit of hydrogen atom is E_n = -13.6/n² eV. The energy required

Medium

-- Two magnets of magnetic moments M and 2M are placed in a vibration magnetometer, with like poles

Practice Physics Exams

Full-length mock tests with detailed analytics, rank, and percentile.

Browse Exams