Two concentric coplanar circular loops made of wire, with resistance per unit length `lambda` , have radii `r_(I)` and `r_(2)(r_(2) gt gtr_(I))` . A potential difference `(alpha+betat)` is applied to the larger loop, where `t` is time. Calculate current in the smaller loop.

Two concentric coplanar circular loops made of wire with resistance per unit length 10^(-4)Omega//m , have diameters 0.2 m and 2m. A time varying potential difference (4+2.5t) volt is applied to the larger loop. Calculate the current in the smaller loop.

Two concentric coplanar circular loops made of wire with resistance per unit length 10^(-4)Omega//m , have diameters 0.2 m and 2m. A time varying potential difference (4+2.5t) volt is applied to the larger loop. Calculate the current in the smaller loop.

Two concetric coplanar circular conducing loops have radii R and r (R gt gt r) . Their mutual inductance is proportional to

Two concentric coplanar circular conducting loops have radii R and r(R>>r) .Their mutual inductance is proportional to

Two concentric coplanar circular loops of radii r_(1) and r_(2) carry currents of respectively i_(1) and i_(2) in opposite direction (one clockwise and the other anticlockwise). The magnetic induction at the centre of the loops is half that due to i_(1) alone at the centre. if r_(2)=2r_(1) . the value of i_(2)//i_(1) is

Two concentric coplanar circular loops of radii r_(1) and r_(2) carry currents of respectively i_(1) and i_(2) in opposite direction (one clockwise and the other anticlockwise). The magnetic induction at the centre of the loops is half that due to i_(1) alone at the centre. if r_(2)=2r_(1) . the value of i_(2)//i_(1) is

A very small circular loop of area 5xx10^(-4)m^(2) , resistance 2Omega and negligible inductance is initially coplanar and concentric with a much larger fixed circular loop of radius 0.1m . A constant current of 1A is passed in the bigger loop and the smaller loop is rotated with angular velocity omega rad//sec about a diameter. Calculate (a) the flux linked with the smaller loop, (b) induced emf (c) induced current in the smaller loop, as a function of time.

A very small circular loop of area 5xxI0^(-4)m^(2) , resistance 2Omega and negligible inductance is initially coplanar and concentric with a much larger fixed circular loop of radius 0.Im . A constant current of IA is passed in the bigger loop and the smaller loop is rotated with angular velocity omegarad//sec about a diameter. Calculate (a) the flux limked with the smaller loop, (b) indced emf (c) induced current in the smaller loop, as a function of time.