a) Div curl B = ∞
b) Div curl A = 0
c) Div curl B = 1
d) Div curl B = B

Ans: (b)

a) Electric field strength
b) Magnetic field strength
c) Electric displacement density
d) Permeability

Ans: (c)

a) E = D
b) E = πD
c) E = D/ε
d) E = r/ε

Ans: (c)

a) λ/2
b) λ/8
c) 4λ
d) λ/4

Ans: (d)

a) absorptive nature of waves
b) reflection of waves
c) longitudinal nature of waves
d) transverse nature of waves
e) electric field of waves

Ans: (d)

a) y = sin⁡x/3
b) x = 2 sin⁡3x/2
c) y = 2sin⁡3x
d) y = 2 sin⁡2x
e) y = 2 sin⁡x

Ans: (c)

a) sin⁡θ₁ < sin⁡θ₂
b) cos⁡θ₁ < cos⁡θ₂
c) tan⁡θ₁ < tan⁡θ₂
d) (a)and (c) only
e) (b) and (c) only
f) (a) and (b) only

Ans: (d)

a) The magnetic field inside the conductor is zero
b) The magnetic field inside the semiconductor is zero
c) The magnetic field inside superconductor is zero
d) The magnetic field inside the superconductor is zero

Ans: (c)

a) Resistance determination
b) Frequency measurements
c) Power factor measurements
d) Harmonic distortion analysis
e) Both (b) and (d)

Ans: (e)

a) Moving coil instruments
b) Moving iron instruments
c) Potentiometric instruments
d) Permanent magnet moving coil instruments
e) Induction instruments

Ans: (d)

a) Paramagnetic
b) Diamagnetic
c) Ferromagnetic
d) Antiferromagnetic

Ans: (b)

a) The dipole movement
b) Monopole movement
c) (a) and (c) both
d) None of the above

Ans: (a)

a) True
b) False

Ans: (b)

a) Copper
b) Silver
c) Copper and silver
d) Iron

Ans: (c)

a) Copper
b) Iron
c) Copper and iron
d) Nickel
e) None of the above

Ans: (d)

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