A vertical wire carrying a current in the upward direction is placed in horizontal magnetic field directed towards north. The wire will experience a force directed towards
Easy
Download our appand get started for free
Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*
Similar Questions
- 1Consider two identical galvanometers and two identical resistors with resistance $R$. If the internal resistance of the galvanometers $R_{ C } < R / 2$View Solution
($A$) The maximum voltage range is obtained when all the components are connected in series
($B$) The maximum voltage range is obtained when the two resistors and one galvanometer are connected in series, and the second galvanometer is connected in parallel to the first galvanometer
($C$) The maximum current range is obtained when all the components are connected in parallel
($D$) The maximum current range is obtained when the two galvanometers are connected in series and the combination is connected in parallel with both the resistors
- 2A triangular loop of side $l$ carries a current $I$. It is placed in a magnetic field $B$ such that the plane of the loop is in the direction of $B$. The torque on the loop isView Solution
- 3A long solenoid is formed by winding $70$ turns $cm ^{-1}$. If $2.0\,A$ current flows, then the magnetic field produced inside the solenoid is $.......\times 10^{-4}\,T$ $\left(\mu_0=4 \pi \times 10^{-7}\,TmA ^{-1}\right)$View Solution
- 4The magnetic field at the origin due to a current element $i\,\overrightarrow {dl} $ placed at position $\vec r$ isView Solution
$(i)\,\,\left( {\frac{{{\mu _0}i}}{{4\pi }}} \right)\left( {\frac{{d\vec l\, \times \,\vec r}}{{{r^3}}}} \right)$
$(ii)\,\, - \left( {\frac{{{\mu _0}i}}{{4\pi }}} \right)\left( {\frac{{d\vec l\, \times \,\vec r}}{{{r^3}}}} \right)$
$(iii)\,\left( {\frac{{{\mu _0}i}}{{4\pi }}} \right)\left( {\frac{{\,\vec r \times d\vec l}}{{{r^3}}}} \right)$
$(iv)\, - \left( {\frac{{{\mu _0}i}}{{4\pi }}} \right)\left( {\frac{{\,\vec r \times d\vec l}}{{{r^3}}}} \right)$
- 5The dimension of where $\sqrt {\frac{\mu }{ \in }} $ is permeability $\& \varepsilon$ is permittivity is same as :View Solution
- 6A moving coil galvanometer of resistance $100 \,\Omega$ is used as an ammeter using a resistance $0.1 \,\Omega$. The maximum deflection current in the galvanometer is $100\,\mu A$. Find the minimum current in the circuit so that the ammeter shows maximum deflection ............... $mA$View Solution
- 7A straight conductor carries a current of $5A$. An electron travelling with a speed of $5 \times {10^6}\,m{s^{ - 1}}$ parallel to the wire at a distance of $0.1\,m$ from the conductor, experiences a force ofView Solution
- 8A proton, a deuteron and an $\alpha$ particle are moving with same momentum in a uniform magnetic field. The ratio of magnetic forces acting on them is.......... and their speed is.................. in the ratio.View Solution
- 9View SolutionAssertion : Voltmeter is connected in parallel with the circuit.
Reason : Resistance of a voltmeter is very large.
- 10A circular loop of radius $R$ carries a current $I$. Another circular loop of radius $r(< < R) $ carries a current $i$ and is placed at the centre of the larger loop. The planes of the two circles are at right angle to each other. Find the torque acting on the smaller loop.View Solution