Electrostatics (AIIMS Physics): Questions 21 - 26 of 36

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Question number: 21

» Electrostatics » Capacitors

MCQ▾

Question

A Equation 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

MCQ▾

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

MCQ▾

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.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 24

» Electrostatics » Capacitors

MCQ▾

Question

Minimum number of Equation and 200 V capacitors used to make a combination of Equation and 1000 V are:

Choices

Choice (4) Response

a.

10

b.

16

c.

7

d.

12

Question number: 25

» Electrostatics » Capacitors

MCQ▾

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

MCQ▾

Question

Calculate the work done in bringing a charge of Equation from infinite point to P. At point P potential is, due to a charge of Equation located Equation away.

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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