If the magnetic field is suddenly removed, the change in magnetic flux becomes zero, and thus the induced current stops immediately.

When the magnetic field is removed from a closed loop, the induced current stops immediately as there is no longer a changing magnetic flux.

According to Lenz's law, the induced current will flow in a direction that opposes the increase in magnetic flux.

Increasing the area of the coil while keeping the magnetic field strength constant increases the magnetic flux through the coil, which according to Faraday's law increases the induced EMF.

If the area of the loop is doubled, the induced EMF will also double, as it is directly proportional to the area.

According to Faraday's law, the induced EMF is directly proportional to the rate of change of magnetic flux. Therefore, if the rate is doubled, the induced EMF also doubles.

If the speed of the conductor is doubled, the rate of change of magnetic flux increases, thus the induced EMF also doubles.

The induced EMF doubles if the speed of the magnet moving through the coil is doubled.

According to Faraday's law, if the area of the loop is increased in a changing magnetic field, the induced EMF increases.

According to Faraday's law, if the area of the loop is increased in a magnetic field, the induced EMF increases.

The induced emf increases when the rate of change of magnetic flux increases, according to Faraday's Law.

When light passes through two polarizers at 90 degrees to each other, the intensity becomes zero because no light can pass through.

The intensity of light passing through two polarizers at an angle of 45 degrees is quartered.

Covering one slit eliminates the condition for interference, resulting in a single-slit diffraction pattern instead of an interference pattern.

If the two slits are not coherent, the interference pattern will disappear as the waves will not maintain a constant phase relationship.

Increasing the wavelength increases the fringe width, as fringe width is directly proportional to the wavelength.

In free expansion, no work is done and no heat is exchanged, so the internal energy remains constant.

In an isochoric process, the volume remains constant, and any heat added to the system increases the internal energy of the gas.

In an adiabatic compression, work is done on the gas, which increases its internal energy.

The kinetic energy of emitted electrons increases linearly with the increase in frequency beyond the threshold frequency.

The kinetic energy of particles increases as they gain energy to overcome intermolecular forces during melting.

The transmitted intensity is given by I = I_0 * cos²(θ), which results in one quarter of the original intensity at 60 degrees.

When light passes through two crossed polarizers (90 degrees apart), no light is transmitted, resulting in zero intensity.

Using Malus's law, the transmitted intensity I = I_0 * cos²(θ). For θ = 30 degrees, I = I_0 * (√3/2)² = (3/4)I_0.

When the angle of incidence exceeds the critical angle, the light ray undergoes total internal reflection and is reflected back into the denser medium.

At the critical angle, the light ray is refracted at 90°, traveling along the boundary between the two media.

The magnetic field inside a long solenoid is directly proportional to the current flowing through it. Increasing the current increases the magnetic field strength.

Reversing the current reverses the direction of the magnetic field.

The magnetic field inside a solenoid is directly proportional to the current flowing through it; thus, it increases with an increase in current.

The magnetic field inside a solenoid is directly proportional to the current. Therefore, if the current is increased, the magnetic field also increases.