Ques. 1NEET (UG) 2021
Column - I gives certain physical terms associated with flow of current through a metallic conductor. Column-II gives some mathematical relations involving electrical quantities. Match column-I and column-II with appropriate relations.
- (A)-(R); (B)-(Q); (C)-(S); (D)-(P)
- (A)-(R); (B)-(S); (C)-(P); (D)-(Q)
- (A)-(R); (B)-(S); (C)-(Q); (D)-(P)
- (A)-(R); (B)-(P); (C)-(S); (D)-(Q)
Answer
(2) (A)-(R); (B)-(S); (C)-(P); (D)-(Q)
Solution
(A) Drift velocity: vd = eEm (R)
(B) Resistivity: E = J = EJ (S)
(C) Relaxation period: = mne2 = mne2 (P)
(D) Current density: J = IA = nevd (Q)
(A)-(R); (B)-(S); (C)-(P); (D)-(Q)
Answer: (2)