Question
What is the official language of
Brazil?Solution
Portuguese is the official language of Brazil.
A circular coil of wire consisting of 120 turns, each of radius 12 cm carries a current of 0.30 A. What is the magnitude of the magnetic field B at the ...
Which of the following equations correctly represents the momentum p of a photon of Energy E?
What is the unit of power in an electrical circuit? Â
What happens to the electrostatic force between two charges when the distance between them decreases?Â
One kilogram of ice at 0° C is mixed with one kilogram of water at 85° C. The final temperature of the mixture is
(Tale specific heat of ...
A constant retarding force of 60 N is applied to a body of mass 25 kg moving initially with a speed of 12 m s–1. How long does the body...
Which law states that the total current entering a junction is equal to the total current leaving the junction?
The coefficient of volume expansion of glycerin is 49 × 10-5 K-1. Find the fractional change in its density for a 20°C rise i...
In an ideal gas, the relationship between pressure P, volume V, and temperature T is given by:?   Â
What is the main principle behind the working of an electric motor? Â
