+91-8076753736[email protected]
logo
logo
-->

Moving Charges And Magnetism

Question
CBSEENPH12039183
Wired Faculty App

Using the concept of force between two infinitely long parallel current carrying conductors, define one ampere of current. 

Solution

One ampere is the value of steady current which when maintained in each of the two very long, straight, parallel conductors of negligible cross section and placed one metre apart in vacuum, would produce on each of these conductors a force equal of 2 x 10-7 N/m of its length.

Some More Questions From Moving Charges And Magnetism Chapter

Two moving coil meters, M1 and M2 have the following particulars:
R1 = 10 Ω   N1 = 30,
A1 = 3.6 x 10–3 m2,  B1 = 0.25 T
R2 = 14 Ω;  N2 = 42,
A2 = 1.8 x 10–3 m2, B2 = 0.50 T
(The spring constants k are identical for the two meters).
Determine the ratio of (a) current sensitivity and (b) voltage sensitivity of M2 and M1.

Mock Test Series

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation