Electronics and Experimental Methods-Device Characteristics (CSIR Physical Sciences): Questions 3 - 4 of 4

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Question number: 3

» Electronics and Experimental Methods » Device Characteristics

Appeared in Year: 2011

MCQ▾

Question

A battery powers two circuits C1 and C2 as shown in the figure,

A battery powers two circuits

A Battery Powers Two Circuits

In figure a battery powers two circuits shown.

The total current I drawn from the battery is estimated by measuring the currents I1 and I2 through the individual circuits. If I1 and I2 are both 200 mA and if the errors in their measurement are 3 mA and 4 mA respectively, the error in the estimate of I is –

(December)

Choices

Choice (4) Response

a.

7.0mA

b.

5.0mA

c.

10.5mA

d.

7.5mA

Question number: 4

» Electronics and Experimental Methods » Device Characteristics

Appeared in Year: 2016

MCQ▾

Question

Two parallel plate capacitors, separated by distance x and 1.1x respective, have a dielectric material of dielectric constant 3.0 inserted between the plates and are connected to a battery of voltage V . The difference in charge on the second capacitor compared to the first is – (June)

Choices

Choice (4) Response

a.

3.3%

b.

+66%

c.

10%

d.

+20%

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