Magnetic effect of electric current

Hans Christan Oersted, one of leading scientist of 19th century played a crucial role in understanding _________

• Electric current

• Magnetism

• Electromagnetism

• Electricmagnetism

The unit of what is named oersted in honour of Hans Oersted

• Magnetic field strength

• Magnetic field

• Magnetism

• Electromagnetism

What is variable resistance also called?

Define Maxwell's Corkscrew rule.

• Consider ourselves driving a Corkscrew in direction of current, then direction of rotation of Corkscrew is direction of magnetic field

• Consider ourselves holding a corkscrew in our hand so the Corkscrew is direction of magnetic field and hands in direction of current.

• Consider ourselves driving a Corkscrew in direction of magnetic field, then direction of rotation of Corkscrew is direction of current.

• All options are correct.

Magnetic field produced by a current carrying wire at a given point depends directly on _________

• Electricity

• Electric current

• Magnetism

• Strength of magnetic field

Weak ion currents that travel along nerve cell in our body produces __________

• Magnetic Field

• Magnetism

• Electricity

• Electrons

What is full form of MRI?

• Magnetic Radiology Imaging

• Magneto Ray Idometry

• Medical Radiometer Instrument

• Magnetic Resonance Imaging

A :- Magnetic field produced

our body is very weak

R :- and it is about one

Billionth of earth's magnetic field

• Both A and R are correct and R is correct explaination of A

• Both A and R are correct but R is not correct explaination of A

• A is true but R is false

• Both A And R are false

The soft Iron core, on which the coil is wound, plus the coils is called ______________

Which scientist suggested that the magnet must also exert an equal and opposite force on the current?

• Andre Marie Ampere

• Hans Oersted

• Michael Faraday

• Alessandro Volta