“On flowing current in a conducting wire the magnetic field produces around it.” It is a law of
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The aboove statement is ampere's law.
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- 2If the angular momentum of an electron is $\overrightarrow {J\,} $ then the magnitude of the magnetic moment will beView Solution
- 3A square current carrying loop is suspended in a uniform magnetic field acting in the plane of the loop. If the force on one arm of the loop is $\overrightarrow F$ the net force on the remaining three arms of the loop isView Solution
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$(A)$ If $\theta=0^{\circ}$, the charge moves in a circular path in the $x-z$ plane.
$(B)$ If $\theta=0^{\circ}$, the charge undergoes helical motion with constant pitch along the $y$-axis.
$(C)$ If $\theta=10^{\circ}$, the charge undergoes helical motion with its pitch increasing with time, along the $y$-axis.
$(D)$ If $\theta=90^{\circ}$, the charge undergoes linear but accelerated motion along the $y$-axis.
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- 6Match List-$I$ with List-$II$View Solution
Choose the correct answer from the options given below :
- 7This questions has Statement $I$ and Statement $II$ Of the four choices given after the Statements, choose the one that best describes into two Statements.View Solution
Statement$-I$ : Higher the range, greater is the resistance of ameter.
Statement$-II$ : To increase the range of ammeter, additional shunt needs to be used across it. - 8The resistances of three parts of a circular loop are as shown in the figure. The magnetic field at the centre $O$ is :-View Solution
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