Miscellaneous Problems on Magnetism and Matter
PHXII05:MAGNETISM and MATTER

360576 In a ferroelectric material, as the applied field is gradually reduced to zero, the polarization still left is known as

1 remanent polarization
2 coercive polarization
3 zero polarization
4 positive polarization
PHXII05:MAGNETISM and MATTER

360577 A sheet is placed on a horizontal surface in front of a strong magnetic pole. A force is needed to:
A. hold the sheet there if it is magnetic.
B. hold the sheet there if it is non-magnetic.
C. move the sheet away from the pole with uniform velocity if it is conducting.
D. move the sheet away from the pole with uniform velocity if it is both, non-conducting and non-polar.
Choose the correct statement(s) from the options given below:

1 B and D only
2 A and C only
3 A, C and D only
4 C only
PHXII05:MAGNETISM and MATTER

360578 Assertion :
The sensitivity of a moving coil galvanometer is increased by placing a suitable magnetic material as a core inside the coil.
Reason :
Soft iron has a high magnetic permeability and cannot be easily magnetized or demagnetized.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII05:MAGNETISM and MATTER

360579 Match the Column I and Column II
supporting img

Choose the correct answer from the options given below :

1 A – R, B – S, C – P, D – Q
2 A – R, B – P, C – S, D – Q
3 A – S, B – P, C – R, D – Q
4 A – P, B – R, C – Q, D – S
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PHXII05:MAGNETISM and MATTER

360576 In a ferroelectric material, as the applied field is gradually reduced to zero, the polarization still left is known as

1 remanent polarization
2 coercive polarization
3 zero polarization
4 positive polarization
PHXII05:MAGNETISM and MATTER

360577 A sheet is placed on a horizontal surface in front of a strong magnetic pole. A force is needed to:
A. hold the sheet there if it is magnetic.
B. hold the sheet there if it is non-magnetic.
C. move the sheet away from the pole with uniform velocity if it is conducting.
D. move the sheet away from the pole with uniform velocity if it is both, non-conducting and non-polar.
Choose the correct statement(s) from the options given below:

1 B and D only
2 A and C only
3 A, C and D only
4 C only
PHXII05:MAGNETISM and MATTER

360578 Assertion :
The sensitivity of a moving coil galvanometer is increased by placing a suitable magnetic material as a core inside the coil.
Reason :
Soft iron has a high magnetic permeability and cannot be easily magnetized or demagnetized.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII05:MAGNETISM and MATTER

360579 Match the Column I and Column II
supporting img

Choose the correct answer from the options given below :

1 A – R, B – S, C – P, D – Q
2 A – R, B – P, C – S, D – Q
3 A – S, B – P, C – R, D – Q
4 A – P, B – R, C – Q, D – S
PHXII05:MAGNETISM and MATTER

360576 In a ferroelectric material, as the applied field is gradually reduced to zero, the polarization still left is known as

1 remanent polarization
2 coercive polarization
3 zero polarization
4 positive polarization
PHXII05:MAGNETISM and MATTER

360577 A sheet is placed on a horizontal surface in front of a strong magnetic pole. A force is needed to:
A. hold the sheet there if it is magnetic.
B. hold the sheet there if it is non-magnetic.
C. move the sheet away from the pole with uniform velocity if it is conducting.
D. move the sheet away from the pole with uniform velocity if it is both, non-conducting and non-polar.
Choose the correct statement(s) from the options given below:

1 B and D only
2 A and C only
3 A, C and D only
4 C only
PHXII05:MAGNETISM and MATTER

360578 Assertion :
The sensitivity of a moving coil galvanometer is increased by placing a suitable magnetic material as a core inside the coil.
Reason :
Soft iron has a high magnetic permeability and cannot be easily magnetized or demagnetized.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII05:MAGNETISM and MATTER

360579 Match the Column I and Column II
supporting img

Choose the correct answer from the options given below :

1 A – R, B – S, C – P, D – Q
2 A – R, B – P, C – S, D – Q
3 A – S, B – P, C – R, D – Q
4 A – P, B – R, C – Q, D – S
PHXII05:MAGNETISM and MATTER

360576 In a ferroelectric material, as the applied field is gradually reduced to zero, the polarization still left is known as

1 remanent polarization
2 coercive polarization
3 zero polarization
4 positive polarization
PHXII05:MAGNETISM and MATTER

360577 A sheet is placed on a horizontal surface in front of a strong magnetic pole. A force is needed to:
A. hold the sheet there if it is magnetic.
B. hold the sheet there if it is non-magnetic.
C. move the sheet away from the pole with uniform velocity if it is conducting.
D. move the sheet away from the pole with uniform velocity if it is both, non-conducting and non-polar.
Choose the correct statement(s) from the options given below:

1 B and D only
2 A and C only
3 A, C and D only
4 C only
PHXII05:MAGNETISM and MATTER

360578 Assertion :
The sensitivity of a moving coil galvanometer is increased by placing a suitable magnetic material as a core inside the coil.
Reason :
Soft iron has a high magnetic permeability and cannot be easily magnetized or demagnetized.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII05:MAGNETISM and MATTER

360579 Match the Column I and Column II
supporting img

Choose the correct answer from the options given below :

1 A – R, B – S, C – P, D – Q
2 A – R, B – P, C – S, D – Q
3 A – S, B – P, C – R, D – Q
4 A – P, B – R, C – Q, D – S