An a.c. generator consists of a coil of 2,000 turns each of area `80 cm^2` and rotating at an angular speed of 200 r.p.m. in a uniform magnetic field of `4.8 xx 10^-2`T. Calculate the peak and r.m.s. value of e.m.f induced in the coil.

An a.c. generator consists of a coil of 50 turns and area 2.5 m^(2) rotating att an angular speed of 60 rad s^(-1) in a uniform magnetic field B = 0.3 T between two fixed pole pieces. The resistance of the circuit including that of coil is 500 Omega . Find What will be the orientaiton of the coil w.r.t. the magnetic field to have (a) maximum (b) zero magnetic flux ?

An a.c. generator consists of a coil of 50 turns and area 2.5 m^(2) rotating att an angular speed of 60 rad s^(-1) in a uniform magnetic field B = 0.3 T between two fixed pole pieces. The resistance of the circuit including that of coil is 500 Omega . Find Would the generator work if the coil were stationary and instead, the pole pieces rotated together with the same speed as above ?

An a.c. generator consists of a coil of 50 turns and area 2.5 m^(2) rotating att an angular speed of 60 rad s^(-1) in a uniform magnetic field B = 0.3 T between two fixed pole pieces. The resistance of the circuit including that of coil is 500 Omega . Find the max. current drawn from the generator.

An a.c. generator consists of a coil of 100 turns and cross sectional area of 3 m^(2) , rotating at a constant angular speed of 60 rad//sec in a uniform magnetic field of 0.04 T. The resistance of the coil is 500 Omega . Calculate max. power dissipation in the coil.

An a.c. generator consists of a coil of 100 turns and cross sectional area of 3 m^(2) , rotating at a constant angular speed of 60 rad//sec in a uniform magnetic field of 0.04 T. The resistance of the coil is 500 Omega . Calculate maximum current drawn from the generator.

A circular coil of radius 8.0 cm and 20 turns is rotated about its vertical diameter with an angular speed of 50 rad s^-1 in a uniform horizontal magnetic field of magnitude 3.0xx10^-2 . Obtain themaximum and average emf induced in the coil. If the coil forms a closed loop of resistance 10 Omega , calculate the maximum value of current in the coil. Calculate the average power loss due to Joule heating. Where does this power come from?

An armature coil consists of 20 turns of wire, each of area A = 0.09 m^2 and total resistance 15 ohm . It rotates in a magnetic field of 0.5 T at a constant frequency of 150//pi . Calculate the value of maximum induced e.m.f. produced in the coil.

An armature coil consists of 20 turns of wire, each of area A = 0.09 m^2 and total resistance 15 ohm . It rotates in a magnetic field of 0.5 T at a constant frequency of 150//pi . Calculate the value of average induced e.m.f. produced in the coil.