Question

Which of the following statements are true concerning electromagnetic induction? Check all that apply. It is possible to induce a current in a closed loop of wire located in a uniform magnetic field by either increasing or decreasing the area enclosed by the loop. It is possible to induce a current in a closed loop of wire without the aid of a power supply or battery. It is possible to induce a current in a closed loop of wire by changing the strength of a magnetic field enclosed by the wire. It is possible to induce a current in a closed loop of wire by change the orientation of a magnetic field enclosed by the wire.

Answer 1

Answer:

a,b,c and d.

Explanation:

Of the following statements the correct are:

a) It is possible to induce a current in a closed loop of wire located in a uniform magnetic field by either increasing or decreasing the area enclosed by the loop.

b) It is possible to induce a current in a closed loop of wire without the aid of a power supply or battery.

d) It is possible to induce a current in a closed loop of wire by change the orientation of a magnetic field enclosed by the wire.

e) It is possible to induce a current in a closed loop of wire by changing the strength of a magnetic field enclosed by the wire.

Answer 2

Answer:

Option:  All of them are correct.

Explanation:

• Electromagnetic induction:

The electromagnetic induction is the phenomenon or process in which the electromotive force e.m.f is generated inside the coil or the conductor through the movement of the magnetic field,E.

As due to the position of the conductor inside the electromagnetic field,E of any magnet can results in the e.m.f generation inside that very conductor.Leading to potential difference inside the circuit, as it leads to the polarity difference created between any two points inside the circuit or any closed loop.

• It is possible to induce a current in a closed loop of wire located in a uniform magnetic field by either increasing or decreasing the area enclosed by the loop.
• It is possible to induce a current in a closed loop of wire without the aid of a power supply or battery.
• It is possible to induce a current in a closed loop of wire by changing the strength of a magnetic field enclosed by the wire.
• It is possible to induce a current in a closed loop of wire by change the orientation of a magnetic field enclosed by the wire.