$\begin {array} {1 1} (a)\;Proportional\: to (180^{\circ}- \theta) & \quad (b)\;Inversely\: proportional\: to\: r \\ (c)\;Zero\: only\: if\: \theta = 180^{\circ} & \quad (d)\;Zero\: for \: all\: values\: of\: \theta \end {array}$

Want to ask us a question? Click here

Browse Questions

Ad |

0 votes

0 votes

Field at the centre due to the two parts is in the opposite direction and is proportional

to current in each arcs and to the angle subtended at the centre

Current is inversely proportional to resistance => it is inversely proportional to length (angle)

$ \therefore $ Current times the angle is constant

Ans : (d)

Ask Question

Tag:MathPhyChemBioOther

Take Test

x

JEE MAIN, CBSE, NEET Mobile and Tablet App

The ultimate mobile app to help you crack your examinations

...