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10th CBSE
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What is the function of split-ring commutator in motor?

Important Questions on Magnetic Effects of Electric Current

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10th CBSE
IMPORTANT
Core Science Physics>Chapter 4 - Magnetic Effects of Electric Current>EXERCISE - 4A>Q 1
The curved lines along which iron filings align themselves around a bar magnet are called:
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10th CBSE
IMPORTANT
Core Science Physics>Chapter 4 - Magnetic Effects of Electric Current>EXERCISE - 4A>Q 4

When current is passed through the circular loop the direction of magnetic field lines at:

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10th CBSE
IMPORTANT
Core Science Physics>Chapter 4 - Magnetic Effects of Electric Current>EXERCISE - 4B>Q 1
Fleming's left-hand rule is applied when:
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10th CBSE
IMPORTANT
Core Science Physics>Chapter 4 - Magnetic Effects of Electric Current>EXERCISE - 4B>Q 3

The conductor AB is suddenly moved in the magnetic field when the induced current flows in it as shown in diagram. The conductor AB is moved:

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10th CBSE
IMPORTANT
Core Science Physics>Chapter 4 - Magnetic Effects of Electric Current>EXERCISE - 4B>Q 4
The strength of magnetic field inside a long current carrying straight solenoid is:
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10th CBSE
IMPORTANT
Core Science Physics>Chapter 4 - Magnetic Effects of Electric Current>EXERCISE - 4B>Q 5
The most important safety method used for protecting home appliances from short circuiting or overloading is:
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10th CBSE
IMPORTANT
Core Science Physics>Chapter 4 - Magnetic Effects of Electric Current>EXERCISE - 4B>Q 20
Describe an activity to demonstrate the pattern of magnetic field lines around a straight conductor carrying current.
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10th CBSE
IMPORTANT
Core Science Physics>Chapter 4 - Magnetic Effects of Electric Current>EXERCISE - 4B>Q 20
 Describe an activity to find the direction of the field produced for a given direction of current in the conductor.