Question

A boy peddles a stationary bicycle the pedals of the bicycle are attached to a 200 turn coil of area 0.10 m2. The coil rotates at half a revolution per second and it is placed in a uniform magnetic field of 0.02 T perpendicular to the axis of rotation of the coil. The maximum voltage generated in the coil is

• A. 1.26 V
• B. 2.16 V
• C. 3.24 V
• D. 4.12 V

Answer 1

Answer: (A)

1.26 V

Answer 2

Here, $\upsilon = 0.5Hz$, $N = 200,A = 0.1m^{2}$

$B = 0.02$ T

maximum voltage generated is

$\varepsilon_{0} = NBA(2\pi\upsilon)$

$= 200 \times 0.02 \times 0.1(2\pi \times .05) = 1.26V$