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1.

The drift speed of an electron in a metal is in the order of ??A. (A) `10^(-13)m/s`B. (B)`10^(-3)m/s`C. (C) `10^(-4)m/s`D. (D) `10^(-30)m/s`

Answer» Correct Answer - C
Discussion
2.

v34.2A. ` AgNO_(3) , AgCl`B. `1%C_(2)H_(5)OH , (C_(2)H_(5))_(2)CO_(3) `C. `HNO_(3) , C Cl_(3)NO_(2) `D. `CH_(3)COCH_(3), CH_(3)-CO-C Cl_(3)`

Answer» Correct Answer - B
Discussion
3.

The number of electrons striking the screen of cathode ray tube is `7.5times10^(15)` in `10` seconds calculate the electric current.A. `(A) 60 mu A`B. ` (B)120 mu A`C. ` (C)180 mu A`D. `(D) 200 mu A`

Answer» Correct Answer - B
Discussion
4.

The number of electrons striking the screen of cathode ray tube is `7.5times10^(15)` in `10` seconds calculate the electric current.A. `(A) 60 mu A`B. ` (B)120 mu A`C. `(C) 180 mu A`D. `(D) 200 mu A`

Answer» Correct Answer - B
Discussion