A rectangular coil `20 cm xx 10 cm` having 500 turns rotates in a magnetic field of `5 xx 10^(-3) T` with a frequency of `1200 rev min^(-1)` about an axis perpendicular to the field.

A rectangular coil of dimensions 40 cm xx25 cm having 1000 turns rotates in a uniform magnetic field of strength 0.08 Wbm^(-2) about an axis perpendicular to the field. If the coil makes 300 revolution per minute, find the instantaneous emf when the plane of the coil make and angle of 0^(@)

A rectangular coil of dimensions 40 cm xx25 cm having 1000 turns rotates in a uniform magnetic field of strength 0.08 Wbm^(-2) about an axis perpendicular to the field. If the coil makes 300 revolution per minute, find the instantaneous emf when the plane of the coil make and angle of 45^(@)

A rectangular coil 25 cm xx 10 cm and having 700 turns rotates about an axis at right angles to a magnetic field of 20 gauss at 1,500revolutions per minute. Calculate the maximum vlaue of the e.m.f. generated in the coil.

A rectangular coil of 300 turns has an area of 25 cm x 10 cm. The coil rotates with a speed of 50 cps in a uniform magnetic field of strength 4 xx 10^(-2)T about an axis perpendicular to the field. The peak value of the induced e.m.f is (in volt)

A rectangular coil of 300 turns has an average area of average area of 25 cmxx10 cm the cooil rotates with a speed of 50 cps in a uniform magnetic field of strength 4xx10^(-2)T about an axis perpendicular of the field. The peak value of the induced e.m.f. is (in volt)

A rectangular coil of 300 turns has an average area of average area of 25 cmxx10 cm the cooil rotates with a speed of 50 cps in a uniform magnetic field of strength 4xx10^(-2)T about an axis perpendicular of the field. The peak value of the induced e.m.f. is (in volt)

A rectangular coil of wire of 500 turns of area 10xx5cm^(2) carries a current of 2A in a magnetic field of induction 2xx10^(-3)T . If the plane of the coild is parallel to the field. The torque on the coil is ( i n) Nm .

A rectangular coil of 300 tums has an average area of 25 cmxx10cm . The coil rotates with a speed of 50 cps in uniform magnetic field of strength 4xx10^(-2) About an axis perpendicular to the field. The peak value of the induced emf is (in volt)