Specific resistance of silver is about 0.16 x 10-8 ?-m 1.64 x 10-8 ?-m 16 x 10-8

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1.64 x 10^-8 ?-m

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2. Assertion (A): Holes are majority carriers in p type semiconductor.
Reason (R): In p type semiconductor, the electrons produced by thermal agitation recombine with holes.
Options
A. Both A and R are true and R is correct explanation of A
B. Both A and R are true but R is not correct explanation of A
C. A is true but R is false
D. A is false but R is true

5. The units for intrinsic strength of dielectric are
Options
A. kV
B. kV/m
C. A
D. A/m

6. The two conductors of a transmission line carry equal current I in opposite direction. The force on each conductor is
Options
A. proportional to I
B. proportional to I²
C. proportional to distance between the lines
D. proportional to I³

9. Assertion (A): Electronic polarizability increases as atoms becomes larger.
Reason (R): For rare gas, ?₀(?_r - 1) E = Na_e, where N is number of atoms/m³ and a_e is electronic polarizability of material.
Options
A. Both A and R are true and R is correct explanation of A
B. Both A and R are true but R is not correct explanation of A
C. A is true but R is false
D. A is false but R is true

10. On the basis of the type of chemical bonds, solids may be classified into
Options
A. ionic crystals
B. ionic and valence crystals
C. ionic crystal, valence crystals and metals
D. ionic crystals, valence crystals, metal and vander wall crystals

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