363002
Assertion : The coil is wound over the metallic frame in moving coil galvanometer. Reason : The metallic frame help in making steady deflection without any oscillation.
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.
Explanation:
Due to the metallic frame, the deflection is only due to current in a coil and magnetic field not due to vibration of springs. The metallic frame prevents oscillations, by damping. So correct option is (1).
PHXII04:MOVING CHARGES AND MAGNETISM
363003
The purpose of soft iron cylinder between the pole pieces of the horse-shoe magnet in a moving coil galvanometer is
1 To increase the magnetic induction in the polar gap
2 To evenly distribute the magnetic lines of force
3 To provide a radial magnetic field
4 To reduce the magnetic flux leakage in the polar gap
Explanation:
Presence of soft iron increases the magnetic induction in the polar gap.
PHXII04:MOVING CHARGES AND MAGNETISM
363004
moving coil galvanometer \(A\) has 200 turns and resistance \(100{\kern 1pt} \Omega \). Another meter \(B\) has 100 turns and resistance \(40{\kern 1pt} \Omega \). All the other quantities are same in both the cases. The current sensistivity of
1 A is 2 times of \(B\)
2 \(B\) is double as that of \(A\)
3 \(B\) is 5 times of \(A\)
4 \(A\) is 5 times of \(B\)
Explanation:
\(\dfrac{\theta}{i}=\dfrac{N A B}{C}\) \(\dfrac{\theta}{i} \alpha N \Rightarrow\left(\dfrac{\theta}{i}\right)_{A}=2\left(\dfrac{\theta}{i}\right)_{B}\)
PHXII04:MOVING CHARGES AND MAGNETISM
363005
The sensitivity of a Galvanometer of resistance \({171 \Omega}\) becomes 20 times when we used shunt of \({x \Omega}\). Find \({x}\).
363002
Assertion : The coil is wound over the metallic frame in moving coil galvanometer. Reason : The metallic frame help in making steady deflection without any oscillation.
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.
Explanation:
Due to the metallic frame, the deflection is only due to current in a coil and magnetic field not due to vibration of springs. The metallic frame prevents oscillations, by damping. So correct option is (1).
PHXII04:MOVING CHARGES AND MAGNETISM
363003
The purpose of soft iron cylinder between the pole pieces of the horse-shoe magnet in a moving coil galvanometer is
1 To increase the magnetic induction in the polar gap
2 To evenly distribute the magnetic lines of force
3 To provide a radial magnetic field
4 To reduce the magnetic flux leakage in the polar gap
Explanation:
Presence of soft iron increases the magnetic induction in the polar gap.
PHXII04:MOVING CHARGES AND MAGNETISM
363004
moving coil galvanometer \(A\) has 200 turns and resistance \(100{\kern 1pt} \Omega \). Another meter \(B\) has 100 turns and resistance \(40{\kern 1pt} \Omega \). All the other quantities are same in both the cases. The current sensistivity of
1 A is 2 times of \(B\)
2 \(B\) is double as that of \(A\)
3 \(B\) is 5 times of \(A\)
4 \(A\) is 5 times of \(B\)
Explanation:
\(\dfrac{\theta}{i}=\dfrac{N A B}{C}\) \(\dfrac{\theta}{i} \alpha N \Rightarrow\left(\dfrac{\theta}{i}\right)_{A}=2\left(\dfrac{\theta}{i}\right)_{B}\)
PHXII04:MOVING CHARGES AND MAGNETISM
363005
The sensitivity of a Galvanometer of resistance \({171 \Omega}\) becomes 20 times when we used shunt of \({x \Omega}\). Find \({x}\).
363002
Assertion : The coil is wound over the metallic frame in moving coil galvanometer. Reason : The metallic frame help in making steady deflection without any oscillation.
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.
Explanation:
Due to the metallic frame, the deflection is only due to current in a coil and magnetic field not due to vibration of springs. The metallic frame prevents oscillations, by damping. So correct option is (1).
PHXII04:MOVING CHARGES AND MAGNETISM
363003
The purpose of soft iron cylinder between the pole pieces of the horse-shoe magnet in a moving coil galvanometer is
1 To increase the magnetic induction in the polar gap
2 To evenly distribute the magnetic lines of force
3 To provide a radial magnetic field
4 To reduce the magnetic flux leakage in the polar gap
Explanation:
Presence of soft iron increases the magnetic induction in the polar gap.
PHXII04:MOVING CHARGES AND MAGNETISM
363004
moving coil galvanometer \(A\) has 200 turns and resistance \(100{\kern 1pt} \Omega \). Another meter \(B\) has 100 turns and resistance \(40{\kern 1pt} \Omega \). All the other quantities are same in both the cases. The current sensistivity of
1 A is 2 times of \(B\)
2 \(B\) is double as that of \(A\)
3 \(B\) is 5 times of \(A\)
4 \(A\) is 5 times of \(B\)
Explanation:
\(\dfrac{\theta}{i}=\dfrac{N A B}{C}\) \(\dfrac{\theta}{i} \alpha N \Rightarrow\left(\dfrac{\theta}{i}\right)_{A}=2\left(\dfrac{\theta}{i}\right)_{B}\)
PHXII04:MOVING CHARGES AND MAGNETISM
363005
The sensitivity of a Galvanometer of resistance \({171 \Omega}\) becomes 20 times when we used shunt of \({x \Omega}\). Find \({x}\).
NEET Test Series from KOTA - 10 Papers In MS WORD
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PHXII04:MOVING CHARGES AND MAGNETISM
363002
Assertion : The coil is wound over the metallic frame in moving coil galvanometer. Reason : The metallic frame help in making steady deflection without any oscillation.
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.
Explanation:
Due to the metallic frame, the deflection is only due to current in a coil and magnetic field not due to vibration of springs. The metallic frame prevents oscillations, by damping. So correct option is (1).
PHXII04:MOVING CHARGES AND MAGNETISM
363003
The purpose of soft iron cylinder between the pole pieces of the horse-shoe magnet in a moving coil galvanometer is
1 To increase the magnetic induction in the polar gap
2 To evenly distribute the magnetic lines of force
3 To provide a radial magnetic field
4 To reduce the magnetic flux leakage in the polar gap
Explanation:
Presence of soft iron increases the magnetic induction in the polar gap.
PHXII04:MOVING CHARGES AND MAGNETISM
363004
moving coil galvanometer \(A\) has 200 turns and resistance \(100{\kern 1pt} \Omega \). Another meter \(B\) has 100 turns and resistance \(40{\kern 1pt} \Omega \). All the other quantities are same in both the cases. The current sensistivity of
1 A is 2 times of \(B\)
2 \(B\) is double as that of \(A\)
3 \(B\) is 5 times of \(A\)
4 \(A\) is 5 times of \(B\)
Explanation:
\(\dfrac{\theta}{i}=\dfrac{N A B}{C}\) \(\dfrac{\theta}{i} \alpha N \Rightarrow\left(\dfrac{\theta}{i}\right)_{A}=2\left(\dfrac{\theta}{i}\right)_{B}\)
PHXII04:MOVING CHARGES AND MAGNETISM
363005
The sensitivity of a Galvanometer of resistance \({171 \Omega}\) becomes 20 times when we used shunt of \({x \Omega}\). Find \({x}\).
