Circular Loop in Magnetic Field... please help last try:/?
A circular loop lies with its plane normal to a magnetic field given by
B=(0.500 - 0.0400t) T, where t denotes the time in seconds. The induced emf in the loop is 2.26 V. Calculate the radius of the loop.
- Steve4PhysicsLv 71 month agoFavourite answer
B=(0.500 – 0.0400t) ⇒ dB/dt = -0.0400
Emf = -dΦ/dt = -d(BA)/dt = -AdB/dt
2.26 = -πr²(-0.0400)
r = √[2.26/(0.0400π)] = 4.24m