CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 369 - 373 of 463

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Question number: 369

» Electromagnetic Theory » Electromagnetic Induction

Appeared in Year: 2011

MCQ▾

Question

Consider a solenoid of radius R with turns per unit length, in which a time dependent current (where ) flows. The magnitude of the electric field at a perpendicular distance from the axis of symmetry of the solenoid, is – (December)

Choices

Choice (4) Response

a.

0

b.

c.

d.

Passage

A resistance is measured by passing current through it and measuring the resulting voltage drop. If the voltmeter and the ammeter have uncertainties of and , respectively, then – (June)

Question number: 370 (1 of 2 Based on Passage) Show Passage

» Mathematical Methods of Physics » Dimensional Analysis

Appeared in Year: 2011

MCQ▾

Question

The uncertainty in the computed value of the power dissipated in resistance is:

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 371 (2 of 2 Based on Passage) Show Passage

» Mathematical Methods of Physics » Dimensional Analysis

Appeared in Year: 2011

MCQ▾

Question

The uncertainty in the value of resistance is:

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 372

» Atomic & Molecular Physics » LS & JJ Couplings

Appeared in Year: 2012

MCQ▾

Question

The ground state of nucleus has spin – parity , while the first excited state has . The electromagnetic radiations emitted when the nucleus makes a transition from the first excited state to the ground state are, (June)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 373

» Thermodynamic and Statistical Physics » Thermodynamic Potentials

Appeared in Year: 2011

MCQ▾

Question

A heater and a thermocouple are used to measure and control temperature T of a sample at . A feedback circuit supplies power ‘P’ to the heater according to the equation with approximately tuned values of coefficients G and D. In order to maintain temperature stability in the presence of an external heat perturbation which causes small but rapid fluctuation of temperature, it is necessary to, (December)

Choices

Choice (4) Response

a.

Decrease G

b.

Increase G

c.

Increases D

d.

Decrease D

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