1
AIEEE 2010
MCQ (Single Correct Answer)
+4
-1
The figure shows the position$$-$$time $$(x-t)$$ graph of one-dimensional motion of body of mass $$0.4$$ $$kg.$$ The magnitude of each impulse is AIEEE 2010 Physics - Center of Mass and Collision Question 102 English
A
$$0.4$$ $$Ns$$
B
$$0.8$$ $$Ns$$
C
$$1.6$$ $$Ns$$
D
$$0.2$$ $$Ns$$
2
AIEEE 2010
MCQ (Single Correct Answer)
+4
-1
Two long parallel wires are at a distance $$2d$$ apart. They carry steady equal currents flowing out of the plane of the paper as shown. The variation of the magnetic field $$B$$ along the line $$XX'$$ is given by
A
AIEEE 2010 Physics - Magnetic Effect of Current Question 171 English Option 1
B
AIEEE 2010 Physics - Magnetic Effect of Current Question 171 English Option 2
C
AIEEE 2010 Physics - Magnetic Effect of Current Question 171 English Option 3
D
AIEEE 2010 Physics - Magnetic Effect of Current Question 171 English Option 4
3
AIEEE 2010
MCQ (Single Correct Answer)
+4
-1
In a series $$LCR$$ circuit $$R = 200\Omega $$ and the voltage and the frequency of the main supply is $$220V$$ and $$50$$ $$Hz$$ respectively. On taking out the capacitance from the circuit the current lags behind the voltage by $${30^ \circ }.$$ On taking out the inductor from the circuit the current leads the voltage by $${30^ \circ }.$$ The power dissipated in the $$LCR$$ circuit is
A
$$305$$ $$W$$
B
$$210$$ $$W$$
C
$$zero$$ $$W$$
D
$$242$$ $$W$$
4
AIEEE 2010
MCQ (Single Correct Answer)
+4
-1
Two conductors have the same resistance at $${0^ \circ }C$$ but their temperature coefficients of resistance are $${\alpha _1}$$ and $${\alpha _2}.$$ The respective temperature coefficients of their series and parallel combinations are nearly
A
$${{{\alpha _1} + {\alpha _2}} \over 2},\,{\alpha _1} + {\alpha _2}$$
B
$${\alpha _1} + {\alpha _2},\,{{{\alpha _1} + {\alpha _2}} \over 2}$$
C
$${\alpha _1} + {\alpha _2},\,{{{\alpha _1}{\alpha _2}} \over {{\alpha _1} + {\alpha _2}}}$$
D
$${{{\alpha _1} + {\alpha _2}} \over 2},\,{{{\alpha _1} + {\alpha _2}} \over 2}$$
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