If =4i+6j-3k and = -2i-5j+7k,find angle between vectors and ?
Whay is electrolysis? explain with some diagrams
why does temperature remain constant in ohm law
What is the weightage of marks for each subject chapter wise for 2014 icse std 10?!
Find the percentage decrease in weight of a body ,when taken 16km below the surface of the earth .Take radius of earth as 6400 km .What happens to the weight of the body ,when it is taken o the centre of the earth.
Even though the drift speed of electron is only 1millimeter per second , why will any electronic appliance start as soon as we switch it on ?(if the drift speed of electron is 1mm per second it should take a long time for the appliance to get started )
A copper wire has diameter 00.5mm and resistivity of 1,6x10.8m. What will be the length of this wire to make its resistance 10 ohm. How does the resistance change if the diameter is doubled.
what do we mean by 'moment of force'?
a wire of resistance 4 R is bent in the form of a circle . what is the effective resistance between the ends of the diameter.
Prove that the centre of mass of two particles divides the line joining the particles in the inverse ratio or their masses?
Explain gear system in clocks.
calculate the current through a 60 watt lamp rated for 250V.if the line voltage falls to 200V how is the power consumed by the bulb affected.
(ii) parallel across the same voltage supply.
What length of copper wire of resistivity 1.7*10^-8 ohm m and radius 1 mm is required so that it's resistance is 1 ohm ?
If
=4i+6j-3k and 
= -2i-5j+7k,find angle between vectors 
and 
?
Whay is electrolysis? explain with some diagrams
why does temperature remain constant in ohm law
What is the weightage of marks for each subject chapter wise for 2014 icse std 10?!
Find the percentage decrease in weight of a body ,when taken 16km below the surface of the earth .Take radius of earth as 6400 km .What happens to the weight of the body ,when it is taken o the centre of the earth.
Even though the drift speed of electron is only 1millimeter per second , why will any electronic appliance start as soon as we switch it on ?(if the drift speed of electron is 1mm per second it should take a long time for the appliance to get started )
A copper wire has diameter 00.5mm and resistivity of 1,6x10.8m. What will be the length of this wire to make its resistance 10 ohm. How does the resistance change if the diameter is doubled.
what do we mean by 'moment of force'?
a wire of resistance 4 R is bent in the form of a circle . what is the effective resistance between the ends of the diameter.
Prove that the centre of mass of two particles divides the line joining the particles in the inverse ratio or their masses?
Explain gear system in clocks.
calculate the current through a 60 watt lamp rated for 250V.if the line voltage falls to 200V how is the power consumed by the bulb affected.
(ii) parallel across the same voltage supply.
What length of copper wire of resistivity 1.7*10^-8 ohm m and radius 1 mm is required so that it's resistance is 1 ohm ?