Electrostatics (AIIMS Physics): Questions 21  26 of 36
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Question number: 21
» Electrostatics » Capacitors
Question
A capacitor in a defibrillator is charged to 2000 V. The energy stored in the capacitor is sent through the patient during a pulse of duration 4 ms. The power delivered to the patient is –
Choices
Choice (4)  Response  

a.  100 kW 

b.  25 kW 

c.  50 kW 

d.  200 kW 

Question number: 22
» Electrostatics » Capacitors
Question
If the distance between the plats of a parallel plate capacitor is double and the dielectric is half, then its capacity will:
Choices
Choice (4)  Response  

a.  Decrease by 2 times 

b.  Remain the same 

c.  Decrease by 4 times 

d.  Decrease by 6 times 

Question number: 23
» Electrostatics » Capacitors
Question
What is the area of the plate of a 2F parallel plate capacitor, if the separation between the plates is 3 mm?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 24
» Electrostatics » Capacitors
Question
Minimum number of and 200 V capacitors used to make a combination of and 1000 V are:
Choices
Choice (4)  Response  

a.  10 

b.  16 

c.  7 

d.  12 

Question number: 25
» Electrostatics » Capacitors
Question
125 drops of liquid are combined to form a bigger single drop. The capacitance of single small drop and single big drop will be in ratio –
Choices
Choice (4)  Response  

a.  1: 5 

b.  1: 25 

c.  25: 1 

d.  5: 1 

Question number: 26
» Electrostatics » Electric Potential
Question
Calculate the work done in bringing a charge of from infinite point to P. At point P potential is, due to a charge of located away.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

