Question

What is an example of statically induced emf ?

Answer 1

Hint: In order to understand and answer this question, we need to understand the concept of Faraday's law of induced emf. Faraday's law of electromagnetic induction states that whenever we place a conductor in a varying magnetic field, an electromotive force is induced in the conductor.

Complete answer:
In statically induced emf we place a conductor in a static condition relative to the magnetic field (such that there is no relative motion between the coil or conductor and the magnetic field).
Thus, statically induced emf is the emf induced in coil or conductors without any relative motion between it and magnetic field (as in the conditions given) called statically induced emf.
This can be achieved if we simply change the magnetic field strength (increase or decrease it with time) keeping both the magnet and conductor fixed
Thus, if the magnetic field strength is changed, we will have a varying magnetic field in a conductor a an emf will be induced

Note:
Apart from statically induced emf there exists a dynamically induced emf in which there is a relative motion between the conductor and the magnetic field, this is a common form of inducing emf. The dynamic induced emf is used in all forms of dams and power plants as varying the magnetic field strength to induced emf is quite difficult than that of inducing emf due to relative motion.