Electromagnetic waves do not transport:

• A) Charge
• B) Energy
• C) Information
• D) Momentum

Electric field inside a conductor is

• A) Maximum
• B) q / εo
• C) Infinite
• D) Zero

What is a Gaussian surface in the context of Gauss's Law?

• A) A surface with constant electric field
• B) A surface with nonzero electric flux
• C) Any closed surface in space
• D) An imaginary surface used to apply Gauss's Law

Along the axial line of an electric dipole, how does the electric field vary with distance "r" from the center of the dipole?

• A) E ∝ r
• B) E ∝ 1/r²
• C) E ∝ 1/r³
• D) E ∝ 1/r

In a parallel circuit with resistors R1​ and R2​, if R1​ is much greater than R2​, how does the voltage across R2​ compare to the voltage across R1​?

• A) Voltage across R1​ is much greater
• B) Voltage across R2​ is much greater
• C) Voltage across both resistors is the same
• D) Voltages can not be determined

Which of the following is equivalent to one coulomb?

• A) one volt per ampere
• B) One volt second
• C) One volt ampere
• D) One ampere second

A particle carrying a charge of 2e falls through potential difference of 3V. the energy acquired by it will be:

• A) 3 eV
• B) 1.5 eV
• C) 6 eV
• D) 0.66 eV

Which of the following types of electromagnetic radiation travels at the greatest speed in vacuum?

• A) All of these travel at the same speed
• B) Radio waves
• C) Gamma rays
• D) X rays

A step-down transformer is used to:

• A) increase the voltage
• B) decrease the voltage
• C) decrease the power
• D) increase the power

Kirchhoff’s first rule is the manifestation of the law of conservation of:

• A) Charge
• B) Energy
• C) Momentum
• D) Mass

As per Coulomb's law, the force of attraction or repulsion between two point charges directly proportional to the

• A) square of the distance between them
• B) sum of the magnitude of charges
• C) product of the magnitude of charges
• D) cube of the distance

What does effect polarization have on the dipole moment in a dielectric material?

• A) Dipole moment remains constant
• B) Dipole moment increases
• C) Dipole moment decreases
• D) Dipole moment becomes zero

Which field(s) are involved in the Lorentz force acting on charged particles in a velocity selector?

• A) Electric and magnetic fields
• B) Gravitational field only
• C) Electric field only
• D) Magnetic field only

Force per unit charge is:

• A) Lorentz force
• B) Electric Flux
• C) Electric potential
• D) Electric field intensity

How does the total current behave when it is divided between two resistors in an electrical circuit?

• A) Becomes zero
• B) Remains constant
• C) Increases
• D) Decreases

Maxwell’s second equation is expressed as __________:

• A) ▽×B = 1
• B) ▽⋅B = 1
• C) ▽×B = 0
• D) ▽⋅B = 0

According to faraday's law, the e.m.f. induced in the coil with N turns and magnetic flux ‘φ’ is:

• A) ɛ = -N2 dφ/dt
• B) ɛ = -N dt2/ d2φ
• C) ɛ = -N d2φ/dt2
• D) ɛ = -N dφ/dt

The waves used by artificial satellites for communication is:

• A) Infrared waves
• B) Radio waves
• C) X-rays
• D) Microwaves

The formula for the energy density (u) in a capacitor, with electric field (E) is:

• A) u = 0.5ε₀E²
• B) u = E/ε₀
• C) u = 0.5E/ε₀
• D) u = ε₀E²

If Io is the peak value of an AC supply, then its rms value is given as Irms:

• A) Io/2
• B) √2 Io
• C) Io/0.707
• D) Io/√2