NEET (NTA)National Eligibility cum Entrance Test (Medical) Physics: Questions 802  807 of 2320
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Question number: 802
» 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.  5A  
b.  0.025A  
c.  2.5A  
d.  0.25A 
Question number: 803
» 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: 804
» 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: 805
» 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.  1 V  
b.  4V  
c.  3 V  
d.  2 V 
Question number: 806
» 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.  350 V  
b.  300 V  
c.  500 V  
d.  250 V 
Question number: 807
» Experimental Skills » Screw Gauge
Question
A cricket bat is cut at the location of its center of mass as shown in the fig. Then
Choices
Choice (4)  Response  

a.  The handle piece will have larger mass  
b.  The bottom piece will have larger mass  
c.  Mass of handle piece is double the mass of bottom piece  
d.  The two pieces will have the same mass 