1. . Conductors are materials that allow
(A) Allow the flow of heat
(B) Does not allow heat to flow
(C) Allow cold to flow
(D) Stops cold from passing through
2. . With the increase in temperature the resistance of semiconductors
(A) Decreases
(B) Increases
(C) Remains Constant
(D) Initially increases and then decreases
3. . The transfer of thermal energy by means of currents in a fluid is called
(A) Conversion
(B) Radiation
(C) Convection
(D) Conduction
4. . In free space, which of the following will be zero?
(A) Permittivity
(B) Permeability
(C) Conductivity
(D) Resistivity
5. . Dipoles are created when dielectric is placed in?
(A) Magnetic field
(B) Electric field
(C) Vacuum
(D) Inert Environment
6. . Polarization is defined as the dipole moment per unit _______?
(A) Length
(B) Area
(C) Volume
(D) Time
7. . The charge within a conductor will be?
(A) 1
(B) 1
(C) 0
(D) Infinity
8. . Which component of the electric field intensity is always continuous at the boundary?
(A) Tangential
(B) Normal
(C) Horizontal
(D) Vertical
9. . The normal component of which quantity is always discontinuous at the boundary?
(A) E
(B) D
(C) H
(D) B
10. . Differential form of Gauss’s law in magnetostatics is _________?
(A) div B = ρ/ε₀
(B) div B = 0
(C) div B = -dB/dT
(D) div B = μJ