GATE (Graduate Aptitude Test in Engineering) Physics: Questions 63 - 67 of 622

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Question number: 63

» Electromagnetic Theory » Scalar and Vector Potentials

Appeared in Year: 2016

MCQ▾

Question

Which of the following magnetic vector potentials gives rise to a uniform magnetic field Equation ?

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 64

» Electromagnetic Theory » Solutions of Electrostatic and Magnetostatic Problems

Appeared in Year: 2016

Short Answer Question▾

Write in Short

The magnitude of the magnetic dipole moment associate with a square shaped loop carrying a steady current Equation is Equation . If this loop is changed to a circular shape with the same current Equation passing it, the magnetic moment becomes Equation . The value of Equation is Equation .

Question number: 65

» Quantum Mechanics » Linear Vectors and Operators in Hilbert Space

Appeared in Year: 2016

MCQ▾

Question

Which of the following operators is Hermitian?

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 66

» Classical Mechanics » Small Oscillations and Normal Modes

Appeared in Year: 2014

Short Answer Question▾

Write in Short

At a given temperature, T, the average energy per particle of a non – interacting gas of two – dimensional classical harmonic oscillators is ________ Equation .

( Equation is the Boltzmann constant).

Question number: 67

» Thermodynamics and Statistical Physics » Free Energy

Appeared in Year: 2016

MCQ▾

Question

For a system at constant temperature and volume, which of the following statements is correct at equilibrium?

Choices

Choice (4) Response

a.

The Gibbs free energy attains a local minimum.

b.

The Helmholtz free energy attains a local minimum.

c.

The Helmholtz free energy attains a local maximum.

d.

The Gibbs free energy attains a local maximum.

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