A coil has resistance 30 ohm and inductive reactance 20 ohmn at 50 Hz frequency.
A coil has resistance 30 ohm and inductive reactance 20 ohm at 50 Hz frequency. If an ac source, of…
8 years ago
Questions
A 220 volts input is supplied to a transformer. The output circuit draws
A 220 volts input is supplied to a transformer. The output circuit draws a current of 2.0 ampere at 440…
8 years ago
A cricket ball of mass 250 g collides with a bat with velocity 10 m/s
A cricket ball of mass 250 g collides with a bat with velocity 10 m/s and returns with same velocity…
8 years ago
The potential energy of a 1 kg particle free to move along the x-axis is given by
The potential energy of a 1 kg particle free to move along the x-axis is given by V(x)={x⁴/4-x²/2}J. The total…
8 years ago
A point source emits sound equally in all directions in a non-absorbing medium.
A point source emits sound equally in all directions in a non-absorbing medium. Two points P and Q are at…
8 years ago
If fundamental frequency of closed pipe is 50 Hz then frequency of 2nd overtone
If fundamental frequency of closed pipe is 50 Hz then frequency of 2nd overtone is Options (a) 100 Hz (b)…
8 years ago
Which of the following phenomena support the wave theory of light?
Which of the following phenomena support the wave theory of light? 1. Scattering 2. Interference 3. Diffraction 4. Velocity of…
8 years ago
Two coherent monochromatic beams of intensities I and 4I respectively, are superposed.
Two coherent monochromatic beams of intensities I and 4I respectively, are superposed. Then, the maximum and minimum intensities in the…
8 years ago
An ideal heat engine works between temperature T₁=500 K and T₂=375 K.
An ideal heat engine works between temperature T₁=500 K and T₂=375 K. If the engine absorbs 600J of heat from…
8 years ago
The molar specific heat at constant pressure of an ideal gas is (7/2)R. The ratio
The molar specific heat at constant pressure of an ideal gas is (7/2)R. The ratio of specific heat at constant…
8 years ago