00. Magnetic Flux, Faraday's Law
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Electro Magnetic Induction

154527 The magnetic flux across a loop or resistance
$15 \Omega$ is given by $\phi=25 t^{2}-6 t+10 \mathrm{~Wb}$. How
much current is induced in the loop after $0.5 \mathrm{~s}$ ?

1 $10 \mathrm{~A}$
2 $15 \mathrm{~A}$
3 $\frac{19}{15} \mathrm{~A}$
4 $21 \mathrm{~A}$
BCECE-2018
Electro Magnetic Induction

154528 A magnetic material is placed in a non-uniform magnetic field which is oriented along $z$-axis having force gradient $=\frac{\partial \mathbf{H}}{\partial \mathbf{z}}$, then force experienced by the material will be equal to

1 $\mathrm{M} \mu_{0} \frac{\partial \mathrm{B}}{\partial \mathrm{z}}$
2 $2 \mathrm{M} \mu_{0} \frac{\partial \mathrm{B}}{\partial \mathrm{z}}$
3 $3 \mathrm{M} \mu_{0} \frac{\partial \mathrm{B}}{\partial \mathrm{z}}$
4 $4 \mathrm{M} \mu_{0} \frac{\partial \mathrm{B}}{\partial \mathrm{z}}$
AIIMS-26.05.2018(M)
Electro Magnetic Induction

154530 When a $10 \mu \mathrm{C}$ charge is enclosed by a closed surface, the flux passing through the surface is $\phi$. Now another $10 \mu \mathrm{C}$ charge is placed inside the closed surface, then the flux passing through the surface is

1 $4 \phi$
2 $\phi$
3 $2 \phi$
4 Zero
GUJCET 2018
Electro Magnetic Induction

154526 Assertion (A) Electromagnetic force is enormously strong as compared to gravitational force. Yet, gravity dominates in the large-scale phenomena (e.g. formation of galaxies).
Reason (R) Existence of positive and negative charges make matter mostly electrically neutral.
Which of the following is true?

1 Both (A) and (R) are true and (R) is the correct explanation of (A)
2 Both (A) and (R) are true, but (R) is not the correct explanation of (A)
3 (A) is true, but (R) is false
4 (A) is false, but (R) is true
TS- EAMCET-04.05.2018
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Electro Magnetic Induction

154527 The magnetic flux across a loop or resistance
$15 \Omega$ is given by $\phi=25 t^{2}-6 t+10 \mathrm{~Wb}$. How
much current is induced in the loop after $0.5 \mathrm{~s}$ ?

1 $10 \mathrm{~A}$
2 $15 \mathrm{~A}$
3 $\frac{19}{15} \mathrm{~A}$
4 $21 \mathrm{~A}$
BCECE-2018
Electro Magnetic Induction

154528 A magnetic material is placed in a non-uniform magnetic field which is oriented along $z$-axis having force gradient $=\frac{\partial \mathbf{H}}{\partial \mathbf{z}}$, then force experienced by the material will be equal to

1 $\mathrm{M} \mu_{0} \frac{\partial \mathrm{B}}{\partial \mathrm{z}}$
2 $2 \mathrm{M} \mu_{0} \frac{\partial \mathrm{B}}{\partial \mathrm{z}}$
3 $3 \mathrm{M} \mu_{0} \frac{\partial \mathrm{B}}{\partial \mathrm{z}}$
4 $4 \mathrm{M} \mu_{0} \frac{\partial \mathrm{B}}{\partial \mathrm{z}}$
AIIMS-26.05.2018(M)
Electro Magnetic Induction

154530 When a $10 \mu \mathrm{C}$ charge is enclosed by a closed surface, the flux passing through the surface is $\phi$. Now another $10 \mu \mathrm{C}$ charge is placed inside the closed surface, then the flux passing through the surface is

1 $4 \phi$
2 $\phi$
3 $2 \phi$
4 Zero
GUJCET 2018
Electro Magnetic Induction

154526 Assertion (A) Electromagnetic force is enormously strong as compared to gravitational force. Yet, gravity dominates in the large-scale phenomena (e.g. formation of galaxies).
Reason (R) Existence of positive and negative charges make matter mostly electrically neutral.
Which of the following is true?

1 Both (A) and (R) are true and (R) is the correct explanation of (A)
2 Both (A) and (R) are true, but (R) is not the correct explanation of (A)
3 (A) is true, but (R) is false
4 (A) is false, but (R) is true
TS- EAMCET-04.05.2018
NEET DIGITAL LIBRARY
Electro Magnetic Induction

154527 The magnetic flux across a loop or resistance
$15 \Omega$ is given by $\phi=25 t^{2}-6 t+10 \mathrm{~Wb}$. How
much current is induced in the loop after $0.5 \mathrm{~s}$ ?

1 $10 \mathrm{~A}$
2 $15 \mathrm{~A}$
3 $\frac{19}{15} \mathrm{~A}$
4 $21 \mathrm{~A}$
BCECE-2018
Electro Magnetic Induction

154528 A magnetic material is placed in a non-uniform magnetic field which is oriented along $z$-axis having force gradient $=\frac{\partial \mathbf{H}}{\partial \mathbf{z}}$, then force experienced by the material will be equal to

1 $\mathrm{M} \mu_{0} \frac{\partial \mathrm{B}}{\partial \mathrm{z}}$
2 $2 \mathrm{M} \mu_{0} \frac{\partial \mathrm{B}}{\partial \mathrm{z}}$
3 $3 \mathrm{M} \mu_{0} \frac{\partial \mathrm{B}}{\partial \mathrm{z}}$
4 $4 \mathrm{M} \mu_{0} \frac{\partial \mathrm{B}}{\partial \mathrm{z}}$
AIIMS-26.05.2018(M)
Electro Magnetic Induction

154530 When a $10 \mu \mathrm{C}$ charge is enclosed by a closed surface, the flux passing through the surface is $\phi$. Now another $10 \mu \mathrm{C}$ charge is placed inside the closed surface, then the flux passing through the surface is

1 $4 \phi$
2 $\phi$
3 $2 \phi$
4 Zero
GUJCET 2018
Electro Magnetic Induction

154526 Assertion (A) Electromagnetic force is enormously strong as compared to gravitational force. Yet, gravity dominates in the large-scale phenomena (e.g. formation of galaxies).
Reason (R) Existence of positive and negative charges make matter mostly electrically neutral.
Which of the following is true?

1 Both (A) and (R) are true and (R) is the correct explanation of (A)
2 Both (A) and (R) are true, but (R) is not the correct explanation of (A)
3 (A) is true, but (R) is false
4 (A) is false, but (R) is true
TS- EAMCET-04.05.2018
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Electro Magnetic Induction

154527 The magnetic flux across a loop or resistance
$15 \Omega$ is given by $\phi=25 t^{2}-6 t+10 \mathrm{~Wb}$. How
much current is induced in the loop after $0.5 \mathrm{~s}$ ?

1 $10 \mathrm{~A}$
2 $15 \mathrm{~A}$
3 $\frac{19}{15} \mathrm{~A}$
4 $21 \mathrm{~A}$
BCECE-2018
Electro Magnetic Induction

154528 A magnetic material is placed in a non-uniform magnetic field which is oriented along $z$-axis having force gradient $=\frac{\partial \mathbf{H}}{\partial \mathbf{z}}$, then force experienced by the material will be equal to

1 $\mathrm{M} \mu_{0} \frac{\partial \mathrm{B}}{\partial \mathrm{z}}$
2 $2 \mathrm{M} \mu_{0} \frac{\partial \mathrm{B}}{\partial \mathrm{z}}$
3 $3 \mathrm{M} \mu_{0} \frac{\partial \mathrm{B}}{\partial \mathrm{z}}$
4 $4 \mathrm{M} \mu_{0} \frac{\partial \mathrm{B}}{\partial \mathrm{z}}$
AIIMS-26.05.2018(M)
Electro Magnetic Induction

154530 When a $10 \mu \mathrm{C}$ charge is enclosed by a closed surface, the flux passing through the surface is $\phi$. Now another $10 \mu \mathrm{C}$ charge is placed inside the closed surface, then the flux passing through the surface is

1 $4 \phi$
2 $\phi$
3 $2 \phi$
4 Zero
GUJCET 2018
Electro Magnetic Induction

154526 Assertion (A) Electromagnetic force is enormously strong as compared to gravitational force. Yet, gravity dominates in the large-scale phenomena (e.g. formation of galaxies).
Reason (R) Existence of positive and negative charges make matter mostly electrically neutral.
Which of the following is true?

1 Both (A) and (R) are true and (R) is the correct explanation of (A)
2 Both (A) and (R) are true, but (R) is not the correct explanation of (A)
3 (A) is true, but (R) is false
4 (A) is false, but (R) is true
TS- EAMCET-04.05.2018
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