To every action, there is always an equal but opposite reaction, this statement is known as:
A bus weighing 12kN has speed of 20 ms-1. Its kinetic energy is:
The gravitational acceleration is the acceleration of bodies when they are in:
Substances that have constant resistance over a wide range of voltages are:
As per Ohm's law, V (potential difference) is equal to
As compare to short wires, long wires have
A resistor having resistance 6.2O is connected across a battery of 5 V by means of a wire of negotiable resistance. Current passes through resistor is 0.4 A. total power produced by battery is
Ratio of sin (x°) of angle of incidence to sin (x°) of angle of refraction is
If 0.6 C charge passes through a wire in 12 s, then current flowing through wire is
Branch of mechanics that deals with study of motion of an object and cause of its motion is called
Wires carrying electricity are covered with good insulator, called
A body continues its state of rest or of uniform motion in a straight line provided no net force acts on it, this statement is called
Resultant of all forces acting on a body is called
A car is moving at a speed of 36 kmh-1. Its speed expresses in ms-1 is