Advertisements
Advertisements
Question
State two factors on which the magnitude of induced e.m.f. in a coil depend.
Advertisements
Solution
- The change in magnetic flux.
- Rate of change in magnetic flux.
APPEARS IN
RELATED QUESTIONS
Why does it become more difficult to move a magnet towards a coil when the number of turns in the coil has been increased?
Explain the principle, construction and working of a dc motor.
An electron moves on a straight line path XY as shown. The abed is a coil adjacent to the path of electron. What will be the direction of current, if any, induced in the coil?
In a coil of resistance 150 `Omega`, a current is induced by changing the magnetic flux through it as shown in the figure. The magnitude of change in flux through the coil is ____________.
Fleming’s left-hand rule is also known as the dynamo rule.
Two positively charged particles each having charge Q and are d distance apart. A third charge is introduced in midway on the line joining the two. Find nature and magnitude of third charge, so that the system is in equilibrium ______.
A conductor in the form of a circular arc of the radius of curvature R subtends an angle Ø at its centre of curvature. If the current in the conduct is I, the magnetic induction at the centre of curvature is ______.
Explain how does the Lenz's law show the conservation of energy in the phenomenon of electromagnetic induction.
An infinitely long cylinder is kept parallel to an uniform magnetic field B directed along positive z axis. The direction of induced current as seen from the z axis will be ______.
