In a parallel circuit with capacitors C1​ and C2​, if C1​ is much larger than C2​, what is the approximate total capacitance (CT​)?

• A) CT​ ≈ C2
• B) CT ​≈ C1 ​/ C2
• C) CT​ ≈ C1
• D) CT ≈ C1 ​⋅ C2

What is the formula for the energy stored (U) in a capacitor with capacitance (C) and potential difference (V)?

• A) U = CV²
• B) U = 0.5 CV²
• C) U = 0.5 (C / V²)
• D) U = C/V

Electromagnetic waves emitted from antenna are:

• A) Longitudinal
• B) Transverse
• C) Linear
• D) Stationary

What are the SI units of magnetic flux?

• A) Tesla (T)
• B) Ampere (A)
• C) Weber (Wb)
• D) Joules (J)

A transparent refracting medium bounded by the two curved surfaces called:

• A) Mirror
• B) Glass
• C) Prism
• D) Lens

If a charged particle moves at an angle of 60 degrees to the magnetic field, what is the angle between the resulting force and the direction of motion?

• A) 30 degrees
• B) 60 degrees
• C) 90 degrees
• D) 0 degrees

In RL series circuit phase angle is given by:

• A) Tan-1 (ωLR)
• B) Tan-1 (ωL/R)
• C) Tan-1( ωR/L)
• D) Tan-1 (R/ωL)

The quantity ΔV/Δr is called:

• A) Electric energy
• B) Potential gradient
• C) Electric potential
• D) Potential barrier

The ratio of the amplitude of magnetic field to the amplitude of electric field for an electromagnetic wave propagating in vacuum is equal to the:

• A) Speed of light
• B) The square root of reciprocal of speed of light
• C) The square root of Speed of light
• D) The reciprocal of speed of light

Lenz’s law is in accordance with law of conservation of

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

The A.C circuit in which current and voltage are in phase the power factor is

• A) 1
• B) Infinity
• C) 0.5
• D) 0

The S.I unit of electric flux is:

• A) Nm-1C-1
• B) Nm-1C-2
• C) N-1m2C
• D) Nm2C-1

What principle governs the conversion of magnetic variations into an electric current in magnetic recording tapes?

• A) Coulomb's Law
• B) Ampere's Law
• C) Faraday's Law
• D) Ohm's Law

What happens to the electric field at the surface of a perfect electric conductor

• A) Electric field is infinite
• B) Electric field is zero
• C) Electric field is discontinuous and proportional to sigma
• D) Electric field is continuous and proportional to sigma

When a charge is projected perpendicular to a uniform magnetic field, its path is:

• A) Ellipse
• B) Circular
• C) Spiral
• D) Helix

In the equation J = n⋅e⋅vd​, what does n represent?

• A) Negative charge
• B) Total number of charge carriers
• C) Drift velocity
• D) Number density of charge carriers

Electric energy is measured:

• A) Horsepower
• B) Watt
• C) Kilowatt
• D) Kilowatt hour

Which electromagnetic radiation transmits the highest photon energy?

• A) Ultraviolet radiations
• B) Infrared rays
• C) Gamma rays
• D) Microwaves

Magnetic flux (ΦB​) is defined as:

• A) The ability of a material to conduct magnetic lines
• B) The measure of magnetic pole strength
• C) The quantity of magnetic field passing through a surface
• D) The strength of a magnet

Electric field due to infinite sheet of charge is

• A) ϕ/εo
• B) ϕ/2εo
• C) σ/2εo
• D) σ/εo