Electrostatics-Capacitors (KVPY Stream-SA (Class 11) Physics): Questions 1 - 4 of 4

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Question number: 1

» Electrostatics » Capacitors

MCQ▾

Question

70 sheets of mica, each of thickness 0.25 mm are interspersed with aluminum foils of area 50 cm2. The metal sheets are connected alternately to form a system of capacitors. The capacitance of the capacitor is –

Choices

Choice (4) Response

a.

91.25nF

b.

77.16μF

c.

86.73nF

d.

77.16nF

Question number: 2

» Electrostatics » Capacitors

MCQ▾

Question

40 sheets of mica, each of thickness 0.3 mm are interspersed with aluminum foils of area 35 cm2. The metal sheets are connected alternately to form a system of capacitors. The capacitance of the capacitor is –

Choices

Choice (4) Response

a.

28.91nF

b.

53.73nF

c.

32.16nF

d.

17.16μF

Question number: 3

» Electrostatics » Capacitors

MCQ▾

Question

When a capacitor is connected to a battery,

Choices

Choice (4) Response

a.

There is no flow of current

b.

The current keeps on increasing, reaching a maximum value until the capacitor is fully charged.

c.

A varying current keeps on flowing in the circuit

d.

Initially a current flow in the circuit and then decreases to zero

Question number: 4

» Electrostatics » Capacitors

MCQ▾

Question

50 sheets of mica, each of thickness 0.1 mm are interspersed with aluminum foils of area 40 cm2. The metal sheets are connected alternately to form a system of capacitors. The capacitance of the capacitor is –

Choices

Choice (4) Response

a.

0.15μF

b.

0.1μF

c.

0.2μF

d.

0.25μF

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