EE - II - UNIT 2 (ELECTROMAGNETISM AND INDUCTION)

Flowing of electrons in a circuit is known as _________

• Magnetism

• Electricity

• Voltage

What is the principle of an electromagnet?

• Magnetic field is produced by an electric current

• Magnetic field is produced by magnetism

• Magnetic field is produced by relactance

Electromagnetism is an interaction between _______ &______

• Electricity & Magnetism

• voltage & current

• magnet & voltage

Who discovered the electromagnetic induction ?

• Michael faraday

• John Ambrouse Fleming

• Maxwell

Example for self inductance device

• Resistor

• Capacitor

• Choke

Mark the equipments which are work on the principle of Electromagnetic Induction?

• Motor

• Generator

• Current clamp meter

• Transformer

• Resistor

The phenomenon due to which there is an induced current in one coil due to the current in a neighbouring coil is _____

• Electromagnetism

• Susceptance

• Mutual Inductance

If the current in one coil becomes steady, the current in neighbouring coil is _______

• Infinity

• Zero

• Double

• One

What is the SI unit of mutual inductance?

• Ohm

• Henry

• Volt

Which among the folowing, is the current expression for mutual inductance ?

• M=(N₂ Φ₂)/I₂

• M=(N₂ Φ₂)/I₁

• M=(N₁Φ₂)/I₂

• M=(N₁ Φ₁)/I₁