Electrostatics (KVPY Stream SB-SX (Class 12 & 1st Year BSC) Physics): Questions 11 - 13 of 13

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Question number: 11

» Electrostatics » Capacitors

Appeared in Year: 2014

MCQ▾

Question

What are the charges stored in the 1 µF and 2 µF capacitors in the circuit below, once the currents become steady?

Combination of resistors and capacitors

Combination of Resistors and Capacitors

Figure shows a circuit diagram of combination of resistors and capacitors.

Choices

Choice (4) Response
a.

4 µC and 8 µC respectively

b.

3 µC and 6 µC respectively

c.

8 µC and 4 µC respectively

d.

6 µC and 3 µC respectively

Question number: 12

» Electrostatics » Capacitors

Appeared in Year: 2014

MCQ▾

Question

Two identical parallel plate capacitors of capacitance C each are connected in series with a battery of emf, E as shown. If one of the capacitors is now filled with a dielectric of dielectric constant k, the amount of charge which will flow through the battery is (neglect internal resistance of the battery)

Circuit diagram of two capacitors and a battery

Circuit Diagram of Two Capacitors and a Battery

In figure a circuit diagram consist of two capacitors and a battery is shown.

Choices

Choice (4) Response
a.

(k1)2(k+1)CE

b.

k2k+2CE

c.

(k+1)2(k1)CE

d.

k+2k2CE

Question number: 13

» Electrostatics » Capacitors

Appeared in Year: 2014

MCQ▾

Question

An electron enters a parallel plate capacitor with horizontal speed u and is fond to deflect by angle θ on leaving the capacitor as shown. It is found that tanθ=0.4 and gravity is negligible,

An electron enters a parallel plate capacitor

An Electron Enters a Parallel Plate Capacitor

In figure an electron enters a parallel plate capacitor with horizontal speed u and is found to deflect by angle (theta) on leaving the capacitor.

If the initial horizontal speed is doubled, then tan θ will be,

Choices

Choice (4) Response
a.

0.2

b.

0.8

c.

0.1

d.

1.6

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