A circular coil with 100 turns and a radius of 10 cm and a resistance of 10 Ω is placed in a uniform magnetic field so that it is perpendicular to the plane of the coil. The field changes uniformly from zero to 0.4 T in 2 seconds. Calculate the induced emf in the coil during the field changing.

If the equivalent capacitance of 3 μF is required, we can connect __________.

An electron has 4.50 eV of kinetic energy. Calculate the wavelength of an electron. (h = 6.63×10⁻³⁴ J s, 1eV = 1.6 × 10^-19 J  )

In Boolean algebra, the sign (+) indicates ………………..

Light with a wavelength of 670 nm is incident on a slit of width 12 μm and produces a diffraction pattern on a screen located 30.0 cm behind the slit. Calculate the distance between the first and second minima.

A wire of radius 0.01m, original length of 2m is put under a tensile force of 75N. The wire extends by 1.5m. Calculate the tensile stress and strain of the wire.

If the speed of a sound wave 340 ms^-1 and its frequency is 1700 Hz, the wavelength (λ)for this wave in cm will be ___________.

Which of the following particles exhibits wave-particle duality?

An observer on a train moving at relativistic speeds sees two lightning bolts strike the front and back of the train simultaneously. What will a stationary observer on the platform conclude?

How does radiation therapy like cobalt-60 treatment work?