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Science
10th
grade
Magnetic Field Through a Current Carrying Conductor : Straight Line | Magnetic Effects of Electric C...
4 questions
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- 1. Multiple Choice
What will happen if we change the direction of the current in the following circuit?
The needle will move 90 degree to the right
The needle will move by 180 degree
There won't be any deflection in the needle.
The needle will rotate at 360° and comes to its original position.
- 2. Multiple Choice
What is the pattern of the iron filings once the current starts moving in the copper wire? Also, what does it signify?
Elliptical curves and magnetic field lines
Concentric circles and magnetic field lines
Parallel lines and electromagnets
Concentric circles and iron filings
- 3. Multiple Choice
Which of the following statement is wrong?
The direction of the magnetic field lines changes when the direction of the current is changed in the circuit.
The magnitude of the magnetic field is increased when the thickness of the wire is increased.
The magnitude of the magnetic field is decreased when the thickness of the wire is increased.
The direction of the magnetic field lines remains same till the direction of the current remains same.
- 4. Multiple Choice
What will be the direction of the direction of the magnetic field lines in the following figure when seen from top?
Anticlockwise
Clockwise
Top to bottom
Bottom to top
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