NEET (NTA)National Eligibility cum Entrance Test (Medical) Physics: Questions 755  759 of 2142
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Question number: 755
» Electromagnetic Induction & Alternating Currents » Self and Mutual Inductance
Question
Two circular coils can be arranged in any of the three situations shown in the figure. Their mutual inductance will be
Choices
Choice (4)  Response  

a.  Maximum in situation A 

b.  Maximum in situation C 

c.  Maximum in situation B 

d.  The same in all situations 

Question number: 756
» Experimental Skills » Screw Gauge
Question
If linear density of a rod of length 3m varies as λ = 2 + x them the position of the center of gravity of the rod is
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 757
» Work, Energy and Power » Work Done
Question
A chain of linear density 10 kg/m and length 8 m is lying on the table with 2 m of chain hanging from the edge. The work done in lifting the chain on the table will be –
Choices
Choice (4)  Response  

a.  176 J 

b.  392 J 

c.  532 J 

d.  116 J 

Question number: 758
» Electromagnetic Induction & Alternating Currents » Induced EMF and Current
Question
A solenoid has an inductance of 50 mH and a resistance of 0.025 Ω. If it is connected to a battery, how long will it take for the current to reach one half of its final equilibrium value?
Choices
Choice (4)  Response  

a.  1.38 sec 

b.  1.38 ms 

c.  0.23 sec 

d.  1.34 sec 

Question number: 759
» Experimental Skills » Screw Gauge
Question
Choose the wrong statements about the center of mass (CM) of a system of two particles
(1) The CM lies on the line joining the two particles midway between them
(2) The CM lies on the line joining them at a point whose distance from each particle is proportional to the square of the mass of that particle
(3) The CM is on the line joining them at a point whose distance from each particle is proportional to the mass of that particle
(4) The CM lies on the line joining them at a point whose distance from each particle is inversely proportional to the mass of that particle
Select the correct answers and mark it according to the following codes:
Choices
Choice (4)  Response  

a.  2 and 4 are correct 

b.  1 and 2 are correct 

c.  1,2 and 3 are correct 

d.  1 and 3 are correct 
