MEDIUM
10th ICSE
IMPORTANT
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State factors on which strength of magnetic field of a current carrying loop depends.

Important Questions on Electromagnetism

EASY
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 10 - Electromagnetism>QUESTIONS>Q 13
A circular coil of n turns carries current I. The magnetic field at its centre is B. What would be the magnetic field due to a similar coil of 3n turns carrying current 3I?
EASY
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 10 - Electromagnetism>QUESTIONS>Q 14
What is solenoid? How the north and south poles of a solenoid marked?
EASY
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 10 - Electromagnetism>QUESTIONS>Q 15
State factors on which strength of magnetic field of a current carrying solenoid depends.
MEDIUM
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 10 - Electromagnetism>QUESTIONS>Q 16

Mark the north and south poles in the solenoid given in the following figure.

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EASY
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 10 - Electromagnetism>QUESTIONS>Q 17
A solenoid of length l has total number of turns n. Another similar solenoid of length 2l has total number of turns 3n. If the same current is passed in both coils, what would be the ratio of their magnetic fields?
EASY
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 10 - Electromagnetism>QUESTIONS>Q 18
Draw the pattern of magnetic lines of force due to a long solenoid.
EASY
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 10 - Electromagnetism>QUESTIONS>Q 19
What happens when a soft iron core is inserted in a current carrying solenoid?
EASY
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 10 - Electromagnetism>QUESTIONS>Q 20
What is electromagnet? Write any four uses of electromagnet.