Circle the odd one :
Single touch, Double touch, Induction method, Electrolysis

Single-touch and double-touch methods of making a magnet

Prove that in two concentric circles, the chord of the larger circle, which touches the smaller circle, is bisected at the point of contact.

The locus of the centre of a circle the touches the given circle externally is a _______

Circle described on the focal chord as diameter touches

The locus of the centre of a circle which touches two given circles externally is a

A circle touches the line L and the circle C_(1) externally such that both the circles are on the same side of the line, then the locus of centre of the circle is :

Find the locus of centres of circles which touch two intersecting lines.

Circles are described on any focal chords of a parabola as diameters touches its directrix

The equation of circles passing through (3, -6) touching both the axes is

In two concentric circles prove that all chords of the outer circle which touch the inner circle are of equal length.