Home
Class 12
PHYSICS
A bicycle is resting on its stand in the...

A bicycle is resting on its stand in the east - west direction and the rear wheel is rotated at an angular speed of 100 revolutions per minute. If the length of each spoke is 30.0 cm and the horizontal comonet of the earth's magnetic field is `2.0 X 10^(-5) T`, find the emf induced between the axis and the outer end of a spoke. Neglect centripetal force acting on the free electrons of the spoke.

Text Solution

Verified by Experts

The correct Answer is:
`3pixx10^(-6)V`
Promotional Banner

Similar Questions

Explore conceptually related problems

A bicycle is resting on its stand in the east-west direction and the rear wheel is rotated at an angular speed of 50 revolutions per minute.If the length of each spoke is 30.0 cm and the horizontal component of the earth's magnetic field is 4xx10^(-5) T ,find the emf induced between the axis and the outer end of a spoke Neglect centripetal force acting on the free electrons of the spoke.

A wheel with 20 metallic spokes each of length 8.0 m long is rotated with a speed of 120 revolution per minute in a plane normal to the horizontal component of earth magnetic field H at a place. If H=0.4xx10^(-4) T at the place, then induced emf between the axle the rim of the wheel is

A helicopter rises vertically upwards with a speed of 100 m//s . If the helicopter has a length of 10m and horizontal component of earth's magnetic field is 5 xx 10^(-3)Wb//m^(2) , then the induced emf between the tip of the nose and the tail of the helicopter is

A helicopter rises vertically upwards with a speed of 100 m//s . If the helicopter has a length of 10m and horizontal component of earth's magnetic field is 5 xx 10^(-3)Wb//m^(2) , then the induced emf between the tip of the nose and the tail of the helicopter is

A metal conductor of length 1 m rotates vertically about one of its ends at angular velocity 5 radians per second. If the horizontal component of earth's magnetic field is 0.2xx10^(-4)T , then the emf developed between the two ends of hte conductor is

A wheel with 10 metallic spokes each 0.5m long is rotated with a speed of 120 rev/min in a plane normal ot the horizontal components of earth's magnetic field B_(H) at a place. If B_(H)= 0.4G at the place, what is the induced emf between the axle and the rim of the wheel ? Note that 1G= 10^(-4) T

A horizontal straight wire 10m long extending from east to west is falling with a speed of 5.0m/s at right angles to the horizontal component of earths magnetic field 0.3 xx 10^(-4) tesla. The emf induced across the ends of wire is

A metal rod length l rotates about on end with a uniform angular velocity omega . A uniform magnetic field vecB exists in the direction of the axis of rotation. Calculate the emf induced between the ends of the rod. Neglect the centripetal force acting on the free electrons as they moving in circular paths.

A wheel with 20 metallic spokes each 0.5 m long is rotated with a speed of 120 rev/min in a plane normal to the horizontal component of earth.s magnetic field H_E at a place. If H_g =0.4 G at the place, what is the induced emf between the axle and the rim of the wheel ? Note that 1G= 10^(-4)T.

A circular wheel if radius 28 cm makes 300 revolutions per minute. Find the speed of the wheel in kilometre per hour.