Which of the following conclusions can be drawn from the result $\oint \vec{B} \cdot d\vec{A} = 0$?
- AMagnetic field is zero everywhere
- BMagnetic monopole cannot exist
- CMagnetic lines of force do not intersect each other
- D$A$ current produces magnetic field
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Two circular loops of diameters $0.6 \,cm$ and $40 \,cm$ are kept coaxially with a separation of $15 \,cm$ between their centres. If a current $2 \,A$ flows through the smaller loop, then the flux linked with the bigger loop is (approximately)
Consider the following figure. $A$ uniform magnetic field of $0.2 \, T$ is directed along the positive $x-$axis. What is the magnetic flux through the top surface of the figure in $m-Wb$?
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View Solution$A$ square coil of area $10^{-2} \ m^2$ is placed perpendicular to a uniform magnetic field of intensity $10^3 \ Wb/m^2$. The magnetic flux through the coil is ........ $Wb$.
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View SolutionIn which of the following systems of units is $Weber$ the unit of magnetic flux?
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View SolutionAssertion $(A)$: Magnetic flux is a vector quantity.
Reason $(R)$: Value of magnetic flux can be positive, negative, or zero.
Reason $(R)$: Value of magnetic flux can be positive, negative, or zero.
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