NEET (NTA)National Eligibility cum Entrance Test (Medical) Physics: Questions 801  805 of 2142
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 2142 questions. Access all new questions we will add tracking exampattern and syllabus changes. View Sample Explanation or View Features.
Rs. 550.00 or
Question number: 801
» Electromagnetic Induction & Alternating Currents » AC Generator and Transformer
Question
A current of 5A is flowing at 220 V in the primary coil of a transformer. If the voltage produced in the secondary coil is 2200V and 50 % of power is lost, then the current in the secondary coil will be 
Choices
Choice (4)  Response  

a.  0.25A 

b.  0.025A 

c.  5A 

d.  2.5A 

Question number: 802
» Laws of Motion » Force and Inertia
Question
What is the tension in a rod of length L and mass M at a distance y from F, when the rod is acted on by two unequal forces F1 and F2 (
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 803
» Electromagnetic Induction & Alternating Currents » Peak and RMS Value of AC
Question
An alternating current is given by the equation . The r. m. s. current is given by
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 804
» Electromagnetic Induction & Alternating Currents » Induced EMF and Current
Question
A current increases uniformly from zero to one ampere in 0.01 second, in a coil of inductance 10 mH. The induced e. m. f. will be –
Choices
Choice (4)  Response  

a.  3 V 

b.  4V 

c.  1 V 

d.  2 V 

Question number: 805
» Electromagnetic Induction & Alternating Currents » Reactance and Impedance
Question
An alternating voltage is connected in series with a resistance R and an inductance L. If the potential drop across the resistance is 200 V and across the inductance is 150 V, then the applied voltage is
Choices
Choice (4)  Response  

a.  500 V 

b.  350 V 

c.  250 V 

d.  300 V 
