Physics Questions

The potential difference between the terminals of an electric heater is 60 V when it draws a current of 4 A from the source. What current will the heater draw if the potential difference is increased to 127.5 V ?

What is the effective resistance (in Ω) of two resistors 20 Ω and 30 Ω connected in parallel?

What is the process of conversion of solid state directly to gaseous state called?

An object with a mass of 22 kg moving with a velocity of 5 m/s possesses a kinetic energy of :

An object at rest will remain at rest and an object in motion will remain in motion until and unless it is acted upon by an external force. This is Newton's

For photoelectric effect to take place, the metal used as the cathode should have_________

Anemometer is an instrument meant for measuring __________

Transformer is a device to convert