NEET (NTANational Eligibility cum Medical Entrance Test) Physics: Questions 722  724 of 2142
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Question number: 722
» Electromagnetic Induction & Alternating Currents » Peak and RMS Value of AC
Question
The r. m. s. value of an ac of 50 Hz is 10 A.
(1) Time taken by the alternating current in reaching from zero to maximum value is 5 x 10 ^{3} sec
(2) Time taken by the alternating current in reaching from zero to maximum value is 2 x 10 ^{3} sec
(3) The peak current is 14.14 A
(4) The peak current is 7.07 A
Select the correct answers and mark it according to the following codes:
Choices
Choice (4)  Response  

a.  1, 2 and 3 are correct 

b.  1 and 3 are correct 

c.  1 and 2 are correct 

d.  2 and 4 are correct 

Question number: 723
» Experimental Skills » Screw Gauge
Question
A T shaped object, dimensions shown in the figure, a1 lying on a smooth floor. A force ‘F is applied at the poi: P parallel to AB, such that the object has only the translational motion without rotation. Find the location of P with respect to C
Choices
Choice (4)  Response  

a. 


b. 


c.  I 

d. 


Question number: 724
» Electromagnetic Induction & Alternating Currents » Faraday's Law
Question
A rectangular coil of size 10 cm x 20 cm has 60 turns. It is rotating about one of its diagonals in magnetic field 0.5 Wb/m ^{2} with a rate of 1800 revolution per minute. The induced e. m. f. in the coil can be,
(1) 111 V (2) 112 V
(3) 113 V (4) 114 V
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 3 are correct 

c.  1, 2 and 3 are correct 

d.  1 and 2 are correct 
