Physics Questions

A 5 kg object is raised through a height of 4 m. The work done by the force of gravity acting on the object is (take g = 10 m/s2)

Two identical resistors, each of 10 ohm, are connected in parallel. This combination, in turn, is connected to a third resistor of 10 ohm. The equivalent resistance of the combination is ___.

If the distance travelled by an object is zero, then the displacement of the object

What is the resistance (in Ω) of an electrical component if a current of 0.4 A passes through it on application of 12 V of potential difference across it?

Which type of electromagnetic radiation has the shortest wavelength?

The ____ of a substance is defined as the mass per unit volume.

One step in the production of hydroelectric power involves _____.

AC is converted into DC by a