Question No : 15
States that the ratio of the thermal conductivity is proportional to the absolute temperature for all metals.
Question No : 16
A law establishing the fact that the algebraic su of the rises and drops of the mmf around a closed loop of a magnetic circuit is equal to zero.
Question No : 17
The net electrical charge in an isolated system remains constant. This is known as
Question No : 18
Lenz's law is the consequence of the law of conservation of
Question No : 19
Lenz' law states that the direction of the induced emf and hence current
Question No : 20
If you hold the conductor with right hand so that the stretched thumb points in the direction of the currenta then encircling fingers will give the direction of magnetic lines of force round the conductor. This is known as
Question No : 21
If the right handed bottle-opener cork screw is assumed to be along the conductor so as to advance in the direction of current flow, the motion of its handle will indicate the direction of magnetic flux produced around the conductor. This is known as