1
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
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
$$R/{\left( {{R^2} - {\omega ^2}{L^2}} \right)^{1/2}}$$
2
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
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
$$10A$$
3
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
A conducting square loop of side $$L$$ and resistance $$R$$ moves in its plane with a uniform velocity $$v$$ perpendicular to one of its sides. A magnetic induction $$B$$ constant in time and space, pointing perpendicular and into the plane at the loop exists everywhere with half the loop outside the field, as shown in figure. The induced $$emf$$ is AIEEE 2002 Physics - Alternating Current and Electromagnetic Induction Question 241 English
A
zero
B
$$RvB$$
C
$$vBL/R$$
D
$$vBL$$
4
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
The inductance between $$A$$ and $$D$$ is AIEEE 2002 Physics - Alternating Current and Electromagnetic Induction Question 240 English
A
$$3.66$$ $$H$$
B
$$9$$ $$H$$
C
$$0.66$$ $$H$$
D
$$1$$ $$H$$
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