EASY
Earn 100

Explain the working of a magnetic crane.

Important Questions on Consequences

EASY
Physics>Change>Consequences>Magnetic Effect of Electric Current
Give two practical applications of an electromagnet.
EASY
Physics>Change>Consequences>Magnetic Effect of Electric Current
List two ways of increasing the strength of an electromagnet if the material of the electromagnet is fixed.
EASY
Physics>Change>Consequences>Magnetic Effect of Electric Current
What is an electromagnet? State it's one of practical use.
HARD
Physics>Change>Consequences>Magnetic Effect of Electric Current
Which of the following electromagnetic waves in the EM spectrum has the highest wavelength?
EASY
Physics>Change>Consequences>Magnetic Effect of Electric Current
Which of the following instruments measures infra-red radiation?
EASY
Physics>Change>Consequences>Magnetic Effect of Electric Current

What is an electromagnet? Draw a circuit diagram to show how a soft iron piece can be transformed into an electromagnet.

EASY
Physics>Change>Consequences>Magnetic Effect of Electric Current
State any two advantages of electromagnets over permanent magnets.
EASY
Physics>Change>Consequences>Magnetic Effect of Electric Current
State the differences between electromagnet and permanent magnet. (Give any three points).
EASY
Physics>Change>Consequences>Magnetic Effect of Electric Current
Draw a labelled diagram to show how an electromagnet is made.
EASY
Physics>Change>Consequences>Magnetic Effect of Electric Current
What is an electromagnet? List any two uses of it.
EASY
Physics>Change>Consequences>Magnetic Effect of Electric Current
State the purpose of soft iron core used in making an electromagnet.
EASY
Physics>Change>Consequences>Magnetic Effect of Electric Current
Fulminology is the study of _____.
EASY
Physics>Change>Consequences>Magnetic Effect of Electric Current
Which of the following is associated with Photophobia?
HARD
Physics>Change>Consequences>Magnetic Effect of Electric Current
The discovery and understanding of electromagnetic induction are based on a long series of experiences carried out by _____.
HARD
Physics>Change>Consequences>Magnetic Effect of Electric Current
Describe three applications of electromagnets.
MEDIUM
Physics>Change>Consequences>Magnetic Effect of Electric Current
What kind of magnets are used in cranes? Justify.
MEDIUM
Physics>Change>Consequences>Magnetic Effect of Electric Current
Name two devices based on the use of electromagnet.
EASY
Physics>Change>Consequences>Magnetic Effect of Electric Current
Electromagnets are used in
MEDIUM
Physics>Change>Consequences>Magnetic Effect of Electric Current
State two important uses of electromagnets. 
EASY
Physics>Change>Consequences>Magnetic Effect of Electric Current
Which of these appliances does not use an electromagnet?