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WorksheetsEE-II unit 1 and Unit 2 Revision
Total questions: 20
Worksheet time: 10mins
Example of magnetic material
Iron
Copper
Rupper
Tungsten steel, cobalt steel and chromium steel are examples for ----------
PERMANENT MAGNET
TEMPORARY MAGNET
ELECTRO MAGNET
Which material is used for Electro magnet?
Soft metal
Hard metal
BOTH A and B
which metal is use to make an electro magnet?
Nickel steel
Carbon steel
Tungsten steel
both A and B
Which of the following is not property of a magnet
Opposite poles attract each other
Like poles ripple each other
Magnet will always stand on east west side
Magnet will always stand on north south side
which magnetic material is used in magnetic stripe on the back of credit cards.
Ferromagnet
Para magnet
Dia Magnet
what is the SI unit of magnetic flux ?
Ampere
weber
volt
What is the unit of magnetic flux density?
weber
ampere turn
Wb/m2 (tesla)
what is the unit of the magnetic flux?
ampere-turns per meter
ampere
weber
choose the unit of MMF
AT (Ampere Turn)
weber
ampere
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
