1
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
The time period of a charged particle undergoing a circular motion in a uniform magnetic field is independent of its
A
speed
B
mass
C
charge
D
magnetic induction
2
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
Wires $$1$$ and $$2$$ carrying currents $$i{}_1$$ and $$i{}_2$$ respectively are inclined at an angle $$\theta $$ to each other. What is the force on a small element $$dl$$ of wire $$2$$ at a distance of $$r$$ from wire $$1$$ (as shown in figure) due to the magnetic field of wire $$1$$? AIEEE 2002 Physics - Magnetic Effect of Current Question 156 English
A
$${{{\mu _0}} \over {2\pi r}}{i_1}{i_2}\,dl\,\tan \,\theta $$
B
$${{{\mu _0}} \over {2\pi r}}{i_1}{i_2}\,dl\,\sin \,\theta $$
C
$${{{\mu _0}} \over {2\pi r}}{i_1}{i_2}\,dl\,\cos \,\theta $$
D
$${{{\mu _0}} \over {4\pi r}}{i_1}{i_2}\,dl\,\sin \,\theta $$
3
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
The power factor of $$AC$$ circuit having resistance $$(R)$$ and inductance $$(L)$$ connected in series and an angular velocity $$\omega $$ is
A
$$R/\omega L$$
B
$$R/{\left( {{R^2} + {\omega ^2}{L^2}} \right)^{1/2}}$$
C
$$\omega L/R$$
D
$$R/{\left( {{R^2} - {\omega ^2}{L^2}} \right)^{1/2}}$$
4
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
In a transformer, number of turns in the primary coil are $$140$$ and that in the secondary coil are $$280.$$ If current in primary coil is $$4A,$$ then that in the secondary coil is
A
$$4A$$
B
$$2A$$
C
$$6A$$
D
$$10A$$
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