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Subjects
Science CBSE
Class 10
Magnetic effects of electric current
The concepts, laws and applications of magnetic effects
6.
MCQ on magnetic field due to a current carrying circular loop
Exercise condition:
2
m.
Choose the appropriate answer
:
1
.
The magnitude of the magnetic field created by a current-carrying circular wire at its centre is ______________.
directly proportional to the current passing through the circular wire
inversely proportional to the current passing through the circular wire
directly proportional to the square of current passing through the circular wire
inversely proportional to the square of current passing through the circular wire
2
.
What happens to the magnetic field in the solenoid when the current increases?
Remains the same
Becomes zero
Decreases
Increases
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